Garmin has released CIRQA firmware 2.50, with a changelog that only says "improvements to OHR." Here's…
Tag: Heart Rate Accuracy
the Garmin CIRQA Review: Should I buy it?
Garmin CIRQA tested against WHOOP, Fitbit Air, Polar Loop and Amazfit Helio on accuracy, battery, price…
Garmin CIRQA Accuracy Test Results: Aces Hyrox Sim (Almost)
Garmin CIRQA faced a HYROX gym simulation against WHOOP MG, Amazfit Balance 3, and Fitbit Air.…
WHOOP Heart Rate Update Tested: Biceps Accuracy Since 6 July
WHOOP shipped a new heart rate algorithm on 6 July. Two biceps tests since then, on…
Garmin CIRQA Fail #2, Heart Rate Accuracy: Running Interval Test Result
Garmin CIRQA underestimated heart rate throughout a hot interval session on the Thames towpath. WHOOP and…
Garmin CIRQA – First Test Accuracy Fail – Open Water Swim
Garmin CIRQA under-read heart rate by 20 to 30 bpm on its first open water swim…
Frontier ZONE Review: ECG Chest Strap for Athletes ❌ 7 cons ✅ 6 pros
A man in his fifties collapsed during a half marathon in 34-degree heat. The Fourth Frontier…
Amazfit Balance 3 Swimming Accuracy: HR, Laps and FORM Smart Swim Goggles Coaching
I tested the Amazfit Balance 3 for swimming HR accuracy alongside the FORM Smart Swim 2…
Amazfit Balance 3 cycling Accuracy – how not test test – Dartmoor Classic
The Amazfit Balance 3 delivered near-chest-strap HR accuracy over 108 km in 26°C heat at the…
Amazfit Balance 3 HYROX Sim: HR and Sweat Test Results
The Amazfit Balance 3 ran its first HYROX sim test alongside hDrop sweat analysis, Whoop MG,…
Amazfit Balance 3 graveyard test, lake and first impressions
A graveyard, a misread lake, and a chance run with a sleep tech CEO. First impressions…
Fitbit AIR vs watchOS 27: HR and HRV Accuracy Tested
watchOS 27 records HRV for just 4 minutes per hour. Fitbit AIR locks on late and…
Amazfit Cheetah 2 Ultra Review: Trail Watch Tested
he Amazfit Cheetah 2 Ultra improves on the Pro across every test: GPS up from 73%…
Fitbit Air vs Whoop MG in HYROX Accuracy Test
Five devices, one HYROX simulation, and a post-gym pub trip. Fitbit Air produced the widest error…
