the Garmin CIRQA Band Review

the Garmin CIRQA Band Review

Garmin CIRQA Band was tested across six separate heart rate sessions, plus sleep, steps and calories. Here's what held up and what didn't.

On the wrist, it was good in three quite different situations. In a HYROX gym simulation it matched Whoop, Amazfit Balance 3 and Fitbit Air within about a beat, despite several stations involving tight gripping that should restrict blood flow to the wrist. In a flow yoga session it matched four references within a beat despite extreme positions held for 'long' periods. In an outdoor bike ride it matched a Tymewear VitalPro chest strap within about a beat across 5,311 matched data points.

It failed badly in two situations, both involving fast changes in effort or motion. In an open water swim it under-read by 20 to 30bpm against three other devices worn correctly under a wetsuit, its worst result by far. In a running interval session it underestimated heart rate at the start of four of five reps, off by roughly 9 to 10bpm, the largest error of any device in that test.

Moving the band from wrist to biceps and repeating the interval test fixed it completely: it matched an HRM 600 chest strap, a Polar Sense and a wrist-worn Whoop within half a beat each. Same sensor, same person, same interval structure. Only the wear position changed. That reflected consistently better sports performance on the biceps as expected.

Sleep tracking held up reasonably well against an Eight Sleep Pod 5 over 15 nights, resting heart rate and breathing rate in particular. Sleep stage breakdown showed no consistent pattern against any comparator, which is typical of wrist-worn sleep tracking generally rather than a CIRQA-specific issue. Step counts ran consistently high in controlled 500-step tests, on both the wrist and the biceps.

Full review: https://the5krunner.com/2026/08/19/garmin-cirqa-band-review/

ISeems pretty good for most of its intended purposes?

u/the5krunner — 24 hours ago

Garmin Draws Level With Samsung in Global Smartwatch Share

Omdia's Q2 2026 wearables report shows Garmin's global smartwatch share rising from 11% to 15% in a single year, pulling it level with Samsung, which slipped from 17% to 15%. Apple still leads with 46%, though that's down two points from last year.

The data doesn't include Garmin's CIRQA screenless band, which launched in late July after this quarter's numbers were collected, so the next report could move things again.

Garmin has appeared in smartwatch market share tables before, including a 9.4% share back in 2020, but has never closed this close to Samsung while both brands held double-digit share. Will Garmin's smartwatch momentum hold once CIRQA sales are counted next quarter?

Further reading: https://the5krunner.com/2026/08/19/garmin-samsung-smartwatch-share/

u/the5krunner — 1 day ago

Cinder: An Apple Watch Recovery App That Shows Its Working

The new indie spotlight covers Cinder, from solo developer Jared Cassoutt. It computes recovery, strain and sleep scores from Apple Health data on the iPhone, and unusually, publishes the full weighting in the app rather than treating it as a black box.

The recovery composite is 70% heart-rate variability, 20% resting heart rate, 10% sleep duration, all z-scored against the athlete's own trailing 30-day baseline. HRV is log-transformed first to handle the right-skew. There is one documented weight shift: when HRV crashes (z below negative 1.5) but resting HR stays calm (absolute z under 0.5), the weights become 85/10/5 so the HRV signal cannot get averaged away into a moderate yellow. And respiratory rate acts as an illness check, taking points off when breathing is elevated and hard-capping the score at 40 if breathing is more than two standard deviations above baseline.

Strain uses Edwards TRIMP over Karvonen heart-rate-reserve zones, compressed onto the 0 to 21 scale. Sleep blends duration (50 points), bedtime consistency (30 points, with a 15-minute grace window) and interruptions (20 points), with sensible handling of nights that land in Apple Health without stage data.

Runs locally on iPhone against Apple Health data. No cloud, no population averages, no data collection. $17.99 a year or $30 lifetime.

Would a published formula actually change your trust in a recovery score, or does it not matter as long as the number lines up with how you feel?

https://the5krunner.com/2026/08/18/cinder-apple-watch-recovery/

u/the5krunner — 1 day ago

Garmin launches Tacx NEO 2T with Zwift Cog and Click

Garmin has priced the Tacx NEO 2T with Zwift Cog and Click at $1,099.99, about double what Wahoo charges for the same cog-and-click setup on the KICKR CORE 2. The one place Garmin can claim a real edge is accuracy: it states 1% power and cadence accuracy, against Wahoo's stated ±2%. The trade-off is that the Zwift Cog's virtual shifting is built for Zwift, and ROUVY support is only best-effort. Is a better accuracy spec worth locking your shifting into one platform?

Full breakdown: https://the5krunner.com/2026/08/18/tacx-2t-zwift-cog-click/

u/the5krunner — 2 days ago

Garmin CIRQA Band: Is its sleep data accurate? A 2-Week Test

I wore a Garmin CIRQA a Whoop MG, a Fitbit Air, an Amazfit Helio, a Polar Loop 2, alongside an Eight Sleep mattress, for 15 nights.

Resting heart rate and breathing rate line up closely across every device, usually within a beat or two. REM and time-awake numbers do not agree between any two devices.

CIRQA reported 48 minutes more REM sleep than Eight Sleep on average, and 42 minutes less time awake, sometimes by over an hour on a single night.

None of these devices can be checked against a true gold standard, so there's no way to say which one is actually right.

Does a sleep-stage number mean anything if six trackers can't agree on it?

https://the5krunner.com/2026/08/15/garmin-cirqa-sleep-accuracy

u/the5krunner — 5 days ago

Garmin Fenix 8 AMOLED jumps back to the watch face and dims when opening the activity list or scrolling glances on 22.41, is there a fix?

On a Fenix 8 AMOLED running software 22.41, pressing the upper right button to open the activity list returns the watch to the watch face and dims the screen roughly three times in ten. The same thing happens while scrolling through glances, sometimes mid-scroll. The behaviour matches the palm gesture, which is the deliberate screen-off action, being triggered when the palm is nowhere near the watch. One owner recorded video of it and posted a full test log in the thread on the Garmin forum.

Disabling touch entirely stops it. That is the diagnostic rather than a fix, since it confirms the touchscreen is registering a palm cover, but it also tells anyone who needs a working watch this week that button-only operation is stable.

Turning always-on display off, returning to the watch face with the lower right button, and turning always-on display back on clears the fault. It holds until the next restart, at which point it returns. Toggling always-on display without first returning to the watch face does not clear it, so the order of those steps matters.

Restoring settings from a backup makes it substantially worse. A full reset with data, set up without a phone and without restoring, produced no occurrences at first and around one percent after a restart. Completing the transfer wizard from a backup taken on an Epix Pro Gen 2 brought the rate straight back to between twenty and thirty percent. Two soft resets before that had no effect at all.

Garmin has asked the reporting owner whether a hard reset and re-enabling touch changes anything, and the thread is still open.

Did turning always-on display off and back on clear the false palm gesture on your watch?

reddit.com
u/the5krunner — 5 days ago

Suunto 9 Peak Pro optical heart rate sensor stops at night and sleep tracking ends early, is there a fix?

The optical heart rate sensor on the Suunto 9 Peak Pro stops mid-night on a recurring basis. The green LEDs go dark, the heart rate screen sits on Measuring indefinitely, and the sleep record ends at the moment the sensor stopped, so a full night is logged as one or two hours. Recovery and HRV figures for that day are built on the truncated record. Owners have tracked it across software 2.48.16, 2.50.26 and 2.50.28, and the reports continue in the thread on the Suunto forum.

A soft reset restores the sensor. Sync the watch first if it is not permanently connected to the phone, because the reset is done from the watch and any unsynced data on it is worth protecting before rebooting.

Toggling Power Saving mode on and then off again brings the sensor back without a reboot. One owner reported the same result from switching energy saving mode on and off. This is the faster route and it avoids the sync step, so it is worth trying before a restart.

The fault has a long history of appearing to be fixed and returning. One owner ran firmware 2.40.44 for an extended period specifically because every release between 2.40.44 and 2.48.16 reintroduced it, and downgraded after each update. A moderator tested a 9 Peak Pro over roughly a week without a recurrence and reported the sensor working, then an owner recorded a stop after a month of clean nights, which shows a week of testing does not clear the fault. Turning SpO2 off has been suggested and has not produced a difference for the owners who tried it. The same stop has been reported on the Race S.

The frequency has risen through August 2026. One owner who had seen it once a month, always between the 17th and the 19th, logged two stops in the first week of August and another on the night of 14 August.

Did toggling power saving mode on and off restore the sensor without a reboot on your watch?

reddit.com
u/the5krunner — 5 days ago

Garmin Edge 840 and 1040 daily suggested workout stuck on yesterday until a full power off and on, is there a fix?

The daily suggested workout on an Edge 840 can stay on the previous day's session even after the head unit has synced with the phone. Powering the unit fully off and back on makes the correct workout appear straight away. Owners who also carry a Forerunner 265 or a Forerunner 965 see the watch update correctly on the same account on the same morning, so the plan itself is right and only the Edge is showing stale data. The reports and Garmin's response are in the thread on the Garmin forum.

The fault sits in the wake path rather than the sync. Waking the unit from sleep or suspend leaves several screens rendering whatever they held when the unit went to sleep, and the training days widget shows the same behaviour, with the marker bar staying under the day the unit was last used. Scrolling to the very bottom of that screen and back forces a redraw and the widget corrects itself. One rider reports the stale state appears only when the unit is woken before noon in Central European Time, and never in the afternoon.

Powering the unit fully down rather than short-pressing to sleep is the reliable workaround. A short press puts the Edge into standby, which is the state that produces the stale workout, and a long press through the power off prompt clears it. Not every owner gets a result from this. One rider on an 840 with a synced phone and a 965 reports the workout does not change after a full power cycle either.

Garmin has an open investigation and has added affected riders to it by name on the thread. The same behaviour has now been reported on an Edge 1040 paired with an Epix Gen 2, where the two devices showed matching workouts until roughly a week ago and have since drifted apart.

A separate discrepancy appears in the workout itself. One rider with 316W set as the auto-detected FTP on both an Edge 840 and a Forerunner 965 found the ten second interval targets in the same suggested workout differed between the two devices, which points at the workout being generated on the device rather than pushed intact from Garmin Connect.

Did a full power off and on refresh the suggested workout on your Edge?

reddit.com
u/the5krunner — 5 days ago

Pixel Watch 5 best ever GPS: what's the point of postprocessing accuracy?

There is a detail in the Pixel Watch 5 GPS announcement that has been largely passed over. The accuracy improvement does not happen on the watch and so cannot happen during the run. The watch compresses its raw satellite data, uploads it, and Google's servers then check the track against 3D models of the buildings along the route, work out which satellite signals could have arrived directly and which bounced off something first, and redraw the line. Google says it validated this over 4,000 miles - sounds a lot, but it isn't.

The reason Google went down this route is interesting in itself. Dual-frequency GPS is supposed to reject reflected signals, and it does, but only when the reflection has travelled far enough to be distinguishable. On L5 that threshold is around 29 metres of extra path, and on the older L1 signal it is around 290 metres. A building on the other side of a normal street is fifteen or twenty metres away, so the reflection arrives well inside the threshold and the watch has no way to identify it. Knowing the building is physically there sidesteps the problem entirely.

What it does not do is touch anything you look at while running. Pace, lap pace and interval distance all come off the watch in real time.

A perfect track that only exists once the run is over: does that actually change anything for a runner?

Further reading: https://the5krunner.com/2026/08/13/pixel-watch-5-gps-accuracy-postprocessing/

Gemini-generated image

u/the5krunner — 7 days ago

Garmin CIRQA Ring: Leak

Garmin filed a CIRQA Smart Ring for certification with Indonesian authorities on 12 August. The certificate was pulled from the database the next day.

Garmin has publicly ruled out a smart ring twice before:

  • once at its 2024 Health Summit, citing sensor accuracy, and
  • again in February 2026 in response to an analyst question on an earnings call.

The ring will carry the same CIRQA name as the screen-free band Garmin launched in July, but the marketing pitch would be different. Finger-based sensors read resting heart rate and HRV more cleanly than a wrist sensor, which suits sleep and recovery tracking well. During exercise, blood is redirected away from the fingers toward the working muscles, which is exactly the scenario where Garmin's wrist sensors have built their reputation.

Will a company that has spent years arguing wrist placement is essential for sports accuracy actually go through with a smart ring?

Full timeline: https://the5krunner.com/2026/08/13/garmin-cirqa-ring-what-we-know/

Note: AI generated image for illustration only.

u/the5krunner — 7 days ago

Amazfit T-Rex Dual Solar Name Confirmed in Filing

A Malaysian SIRIM filing has named Amazfit's next rugged watch the T-Rex Dual Solar, model A2570. The filing was approved on 3 August, and matching registrations have also turned up in Indonesia, South Korea and the Eurasian Economic Union. Code in the Zepp Health app referenced solar intensity and separate power inputs for the watch face and case back months before the name was linked to the device, and an unbranded rugged Amazfit watch with a different-looking display appeared briefly on Amazfit Spain's Instagram in July. No sports watch brand has yet managed to combine solar charging with an AMOLED screen without giving up brightness or colour, so will this be another niche solar hiking watch for those who think they really need exceptionally long battery life?

https://the5krunner.com/2026/08/12/amazfit-t-rex-dual-solar/

u/the5krunner — 8 days ago

reMarkable Paper Pure student review: what a 16-year-old actually thinks

The reMarkable Paper Pure went through almost 2 months of test sessions with a 16-year-old student reviewer: handwritten Biology notes, PDF past-paper annotation, a week of bag carry, and a timed 45-minute revision session with the phone in another room. The distraction result was the strongest finding: more material covered, no time lost to scrolling, and a noticeably calmer session than equivalent iPad revision. The writing feel beats an iPad with an Apple Pencil on texture and lag.

The limitations are important to point out clearly.

  • There is no front light, so low-light use is as restricted as a paper notebook.
  • The screen is monochrome, which rules out colour-coded annotation.
  • The text conversion tool cannot handle subscripts or fractions, which makes it unreliable for any student in maths, physics, or chemistry.
  • The Connect subscription adds roughly £4 / $4 per month for features including handwriting search that most students will want.

At £359 / $399 before accessories and subscription, is the focus benefit alone enough to justify the price over a good paper notebook? Or is this just another unnecessary purchase by someone (parent) who has run out of things to buy their nearest and dearest?

https://the5krunner.com/2026/08/11/remarkable-paper-pure-review/

u/the5krunner — 9 days ago

Amazfit gains FTMS rowing and manual swim rest tracking

Amazfit has shipped native FTMS connectivity for its Rowing Machine profile, so the watch now pairs directly with FTMS-compatible ergs like the Concept2 RowErg and shows power and distance on the wrist instead of just the erg console.

Garmin does not have this built in. Garmin owners get the same data only by buying a third-party Connect IQ data field from an independent developer, unlock-coded per device, and it is not part of the native experience.

The same update also adds Manual Rest tracking in Pool Swimming, an Always Locked touchscreen mode for wet or gloved hands, and an Athlete Defaults profile that turns on Do Not Disturb, mutes alerts, and sets GPS to maximum precision automatically. Availability varies: Always Locked skips the T-Rex 3, and Athlete Defaults is limited to the Cheetah 2 Ultra, Cheetah 2 Pro, Balance Ultra, and Balance 3.

Is native FTMS support the kind of thing that actually moves a buying decision, or does it only matter to the small number of owners who already train on a rowing machine?

Further reading: https://the5krunner.com/2026/08/10/amazfit-ftms-rowing-update/

the5krunner.com
u/the5krunner — 10 days ago

Garmin Fenix 8 pace dropping to zero during fast interval runs after software 22.35

Since software 22.35 the Fenix 8 drops running pace to 0:00 at the point you enter a fast interval, then holds it there for the rest of the activity. GPS continues tracking the route correctly and distance still records, but running dynamics, running power, and all pace data on Garmin Connect are corrupted from that point. Owners who inspected their FIT files on the thread found enhanced_speed falling to 0.000 metres per second after the first thirty seconds of a hard effort, which is why Connect reports a pace near zero or close to an hour per kilometre.

The fault has been reproduced with an external heart rate strap, with a foot pod, and on GPS alone, which rules out a single accessory as the cause.

Pausing and resuming restores the pace field temporarily, but it drops again at the next hard interval, making it a mid-session rescue rather than a fix.

Garmin's troubleshooting sequence on the thread runs in order:

  1. confirm no battery saver mode is active,
  2. confirm no focus mode is reducing satellite settings,
  3. restore the activity to defaults from activity settings, then
  4. reinstall the firmware from System, About, eight presses on the light button,
  5. Reinstall software.
  6. A factory reset without restoring a backup is the final step, since a restored backup can carry the fault back.

None of these has been confirmed to hold through a full interval session, so treat them as diagnostic steps.

Did a clean reinstall without restoring a backup get pace tracking through a full set of fast intervals?

reddit.com
u/the5krunner — 12 days ago

Garmin Enduro 3 and Instinct 2X returning to sleep mode after you manually end it on firmware 22.35, and how to fix it

On firmware 22.35 the Enduro 3 returns to sleep mode on its own after you manually end sleep focus, as long as you are still inside the scheduled sleep window. The sequence is consistent: end sleep focus, then stay still or cover the watch, and it drops back into sleep mode. Notifications stop arriving until you end sleep focus again. The same behaviour appears on the Instinct 2X. The owner who filed the bug discovered it when alerts failed to come through after waking.

Garmin confirmed on the thread that while the watch is inside the scheduled sleep window, re-entry into sleep mode is driven by activity level, not by the manual end command you just gave. Low movement reads as going back to sleep, so the watch re-enters the mode.

Starting any timed activity blocks re-entry more reliably than movement alone, because it overrides the inactivity logic for the whole session. That is the quickest fix.

The lasting fix is to set the sleep schedule in Garmin Connect so the watch is outside the scheduled window at the point you normally wake. Once the scheduled wake time is earlier than your actual rising time, the inactivity logic does not fire. This is configuration rather than a firmware patch, so anyone whose schedule runs past their real wake time will keep seeing it.

Did adjusting the sleep schedule sort it, or does it still re-trigger?

reddit.com
u/the5krunner — 12 days ago

Garmin Edge 1050 alert tone volume resetting to zero after every power off since firmware 31.29

On firmware 31.29 and later, the Edge 1050 resets its alert tone volume to zero every time the unit is powered off and on again. Turn and navigation prompts, sensor connection alerts, and lap tones all go silent on the next ride without any warning. Owners on this thread confirm the volume stays at whatever level it was set during the session, then returns to zero on the next power on.

The fix each time is to go into Settings, then System, then Display and Sounds, and set the tone volume manually before starting the ride. It takes about five seconds but has to be done after every cold start. Setting a data field on the activity screen to show the tone volume level makes the reset visible at a glance rather than discovering it mid-ride when a turn prompt fails to sound.

Garmin has not patched this in any release up to 31.33. Owners who tried a factory reset report the behaviour returns after the first power cycle following setup.

Does yours reset every time, or only after a longer time off?

reddit.com
u/the5krunner — 12 days ago

Wahoo Kickr v6 losing power reading and disconnecting from Zwift mid-session after firmware 5.6.13

After updating a Kickr v6 to firmware 5.6.13, the trainer drops its Bluetooth connection to Zwift mid-session and the power reading disappears. The connection returns within a few seconds in most cases but the dropout is enough to break ERG mode and force a manual gear change to stay near the target wattage. Owners on this thread report it on both Windows and macOS, and with both the Wahoo companion app and direct Bluetooth connections, which rules out a platform-specific cause.

Pairing the Kickr to Zwift over ANT+ instead of Bluetooth resolves the dropout for most owners. The connection stays solid through sessions that previously dropped multiple times. If your trainer is near the computer, a direct ANT+ USB dongle placed close to the Kickr rather than at the machine is the setup that holds best.

Switching from Bluetooth to ANT+ requires unpairing the trainer from Zwift's Bluetooth device list and re-adding it as an ANT+ power source. Zwift will show it as a separate device entry. Once paired over ANT+, ERG mode works normally and the power reading holds through intervals.

Wahoo has not released a firmware update that addresses 5.6.13. The Bluetooth stack change in that release appears to have introduced a timing issue that ANT+ avoids entirely.

Has the ANT+ pairing held through full sessions for you, or are you still seeing drops?

reddit.com
u/the5krunner — 12 days ago

Garmin Edge 1050 showing the wrong Varia RearVue 820 battery level when a second light is also connected

The Edge LIGHTS battery field is designed to show the lowest battery among all connected lights. With a Varia RearVue 820 connected on its own, the Edge reports its level correctly. Add a second light such as the UT800 and the field switches to tracking the headlight instead of the radar, so an RV820 sitting near 30 percent can read close to 80 percent on the Edge. Owners on this thread describe it on the Edge 1050 with the RV820 paired alongside a headlight.

The RV820 connects to the Edge over Bluetooth as a radar but uses ANT for light controls and battery reporting. The battery rollup across the light network stops returning the radar's lower value once a second light joins, so the figure on screen tracks the headlight rather than the unit that will run out first.

Two methods give the true level. Connect only the RV820 before a ride, where it reports correctly, or keep the Varia phone app open during the ride. The phone app shows the radar battery independently and gives the audible low alert. Third-party Connect IQ battery fields written for older Varia units do not yet support the RV820.

Until the reporting is corrected, charge the RV820 every two to three rides rather than trusting the Edge figure. The wrong reading only appears when more than one light is connected, so a radar-only setup shows the correct level.

Anyone found a Connect IQ field that reads the RV820 correctly when a headlight is also connected?

reddit.com
u/the5krunner — 12 days ago

Beatrunner Pro: Running Music That Matches Your Pace

The new indie spotlight covers Beatrunner Pro, from developer Moritz. It sits in the same territory as Beatpace on Garmin but takes a different technical route.

Rather than serving up structured tracks matched to a workout, Beatrunner Pro takes locally available music on the iPhone (Apple Music playlists synced to the device, or files in the Files app) and time-stretches the audio in real time so the tempo follows the target cadence. Pitch stays intact, so a song does not turn into the Mickey Mouse effect when it is slowed down or sped up.

There are two modes.

  1. Manual Tempo lets a runner set a target cadence with a slider or plus and minus buttons, with personalised presets saved for frequently used targets.
  2. Workout Mode covers Interval, Pyramid, Tempo Run, Progressive and Fartlek sessions, defined between a minimum and maximum cadence, with the music changing tempo automatically as the workout moves between phases.

The Apple Watch app gives Manual Mode controls on the wrist (Digital Crown for tempo) and a Workout Mode status display. Heart Rate Actions read Apple Health heart-rate data and can slow the music by 20 per cent or stop it entirely when the runner hits Zone 4 or Zone 5.

Streaming, DRM-protected and cloud-only tracks are not supported. Requires iOS 26 and watchOS 11.

Does time-stretching your own music actually beat pre-built structured tracks or a Spotify Running Mode session? #NotSure

https://the5krunner.com/2026/08/08/beatrunner-pro-running-music-pace-iphone-apple-watch/

u/the5krunner — 12 days ago

Fourth Frontier X Plus Review: FDA-Cleared ECG Chest Strap

A clinical 12-lead ECG found a leftward electrical axis, a possible sign of left ventricular hypertrophy, and a nonspecific ST abnormality in a recent ECG I had in London.

Worn two days later under matched conditions, the Fourth Frontier X Plus picked up none of these findings. That's not the device failing: a single-lead chest strap physically cannot calculate axis, assess ST changes by region, or apply voltage criteria for hypertrophy, all of which need multiple leads.

What it did match exactly was rhythm and rate, and Fourth Frontier's own validation study reports 98.1% sensitivity and 97.9% specificity for AFib detection across 832 patients.

Sports accuracy also held up well with cycling and running test both coming back as excellent against Polar and WHOOP references, including a maximal effort finish.

It's FDA 510(k) cleared but prescription-only and US-only for now.

How useful is a single-lead ECG chest strap?

https://the5krunner.com/2026/08/08/fourth-frontier-x-plus-review-ecg/

u/the5krunner — 12 days ago