4iiii PRECISION 3 Power Meter: Details // Data // Review

4iiii have been in the power meter game for many years now and earlier this year (2022) they released their third generation of their PRECISION cycling power meter. What should have built on a relatively strong offering of the PRECISION 2 has been a rocky ride to date. This video covers the details of the PRECISION 3, my extensive testing, and my take on where things are at with this power meter.

YouTube player


4iiii Official: https://4iiii.com/

Technical Specifications:
Type: Crank Based Power Meter (Shimano Left / Single Sided)
Wireless Data: ANT+, Bluetooth Smart.
Battery: 1x CR2032 / ‘Up To’ 800hrs
Power Measurement: Left Power (Doubled), Cadence
Power Accuracy: ±1% (Claimed)
Power: 0-4000W
Cadence: 30-170RPM (Accelerometer. No magnet required)
Active Temperature Compensation: Yes
Waterproofing: IPX7
Firmware: Upgradable via 4iiii App. *Important!
Weight: 9g Pod.
Warranty: 3 years.
Misc: No Chipolo tracking.
RRP: From US$334


Shane Miller

5 thoughts on “4iiii PRECISION 3 Power Meter: Details // Data // Review

  1. Thanks for the detailed testing on this. Have you had any experience with updated firmware releases for the Precision 3? I wouldn’t blame you if you didn’t want to go near it again!

    1. I’ve had a new beta firmware on this meter for the last week or so. Performance is MUCH better. I’ll wait for it to be a pubic release before wrapping up any new data/conclusions on it.

      1. Got an email from 4iiii last night to say firmware 1.2.0 was available to download. I just updated it now. Just sharing the good news!

  2. Hi GPLama! Thanks for having tested the power meter last June! I was wondering whether the beta version was already publicly released? Did the performance improve? Thank you!

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