# Garmin Rally RS200 vs 4iiii Precision 3+: specs and price compared

A sourced, side-by-side comparison of the Garmin Rally RS200 (Garmin) and 4iiii Precision 3+ (4iiii) among cycling power meters.

## Side by side

| Spec | Garmin Rally RS200 | 4iiii Precision 3+ |
| --- | --- | --- |
| US price | $1099.99 | not published |
| Brand | Garmin | 4iiii |
| Mount type | pedal | crank-arm |
| Measurement sides | dual-sided | single-sided |
| Accuracy pct | 1 | 1 |
| Weight grams | 320 | 9 |
| Battery type | CR1/3N | CR2032 |
| Battery life hrs | 120 | 800 |
| Connectivity | ANT+/BLE | ANT+/BLE |
| Power balance measured | Yes | No |
| Cycling dynamics | Yes | Yes |
| Waterproof rating | IPX7 | IPX7 |
| Warranty years | — | 3 |

## Key differences

- Mount type: Garmin Rally RS200 pedal vs 4iiii Precision 3+ crank-arm
- Measurement sides: Garmin Rally RS200 dual-sided vs 4iiii Precision 3+ single-sided
- Weight grams: Garmin Rally RS200 320 vs 4iiii Precision 3+ 9
- Battery type: Garmin Rally RS200 CR1/3N vs 4iiii Precision 3+ CR2032
- Battery life hrs: Garmin Rally RS200 120 vs 4iiii Precision 3+ 800
- Power balance measured: Garmin Rally RS200 Yes vs 4iiii Precision 3+ No

## What reviewers say

**Garmin Rally RS200** — Two whitelisted cycling testers cover the exact RS200 and both rate the system accurate, clean-looking and versatile but pricey. BikeRadar reviewed the RS200 directly (4.5/5); DC Rainmaker bench-tested the RS200 SPD-SL variant against a Tacx NEO 2 and Stages LR (RS200 tracked near-identical to the Stages), and weighed the SPD-SL cleats at 40 g/side. BikeRadar flags the premium price and slightly delayed pickup from a stop; DCR noted the unit failed to compensate for a temperature shift on a cold day, fixable with a manual zero-offset. (Cycling Weekly was dropped: its hands-on test pair was the RK200 Look-Keo trim, not the RS200.) (2 sourced reviews.)

## Sources

- Garmin Rally RS200: https://www.garmin.com/en-US/p/658593/ (garmin.com, verified 2026-07-13)
- 4iiii Precision 3+: https://4iiii.com/precision-3-plus/ (4iiii.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/cycling-power-meters/garmin-rally-rs200-vs-4iiii-precision-3-plus/
Cite: Per The Front Desk Review, Garmin Rally RS200 ($1099.99) vs 4iiii Precision 3+ (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/cycling-power-meters/garmin-rally-rs200-vs-4iiii-precision-3-plus/
License: CC BY 4.0.