Mibro GS Active 2: specs, who it fits and compatible phones
Mibro GS Active 2 is a sport watch released in 2025 that works with iPhone and Android. It lists Dual-band GNSS, 5ATM and SpO2, Heart rate.
Specifications
| Release year | 2025 (approx.) |
|---|---|
| Case size | 46 mm (approx.) |
| Display | AMOLED |
| Brightness | 1200 nits |
| Battery as listed | Up to 20 days everyday · 15 GPS hours |
| Water rating | 5ATM |
| Case material | Aluminum, 39.9g (woven) |
| GPS type | Dual-band GNSS |
| Operating system | Mibro OS |
| Works with | iPhone and Android |
| Connection | No cellular connection |
| Plan needed | None |
| Health sensors | SpO2, Heart rate |
Who it fits
- Works with iPhone and Android.
- Lists a battery above the median of 53 listed sport watch models.
- Lists an exact water rating of 5ATM or higher.
Overview
The Mibro GS Active 2 (2025) is a featherweight running watch: 39.9 grams with the woven strap, dual-frequency GNSS (L1+L5), up to 20 days of battery and pro running coaching, at a $79.99 official sale price. It is one of the cheapest dual-band GPS running watches in this catalog.
What it does well
- Dual-frequency positioning for under $80. L1+L5 GNSS improves track accuracy in cities and under trees, a feature usually found well above this price.
- 39.9 grams. With the woven strap it is light enough to forget on long runs.
- 20 days of listed battery in daily use, and 15 hours of continuous GPS.
- Running focus: pro running coaching, plus Bluetooth calls and a 1.32-inch AMOLED at 466x466 with 1200 nits.
Tradeoffs to know
- No offline maps: navigation is track recording, not on-wrist mapping.
- The spec sheet lists NFC card hardware; third-party app support and payment-wallet support have not been verified for this model.
- 5ATM covers swimming but this is a runner first; multisport athletes may want more.
Price and availability
$79.99 official sale price (list $99.99) from the Mibro store. Prices can change.
FAQ
Is the GS Active 2 good for marathon training?
On paper it fits: dual-band GPS, 15 hours of continuous GPS and running coaching cover long training blocks at a low price.
Does it have maps?
No. It records your route precisely, but there is no on-watch map display.
Which phones work with it?
Both iPhone and Android, through the Mibro app.
How it compares
Closest models from other brands
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Amazfit T-Rex 3 Pro | 2025 | 48 mm | 25 days (approx.) | 10ATM | Dual-band GNSS + maps | iOS and Android |
| COROS Apex 4 | 2025 | 42 / 46 mm | Up to 65 GPS hours (46 mm) (approx.) | 5ATM | Dual-band GNSS + maps | iOS and Android |
| COROS NOMAD | 2025 | 46 mm | Up to 22 days; 50 hours All-Systems GPS | 5ATM | Dual-band GNSS + maps | iOS and Android |
Compared with Amazfit T-Rex 3 Pro, Mibro GS Active 2 lists a lower ATM rating (5 against 10) and a dimmer listed display (1200 nits against 3000).
Only values listed exactly are compared.
Phone compatibility and plan
No plan is listed as needed.
Sensors and features are listed as the maker names them and are not medical measurements.
Related guides and lists
- Battery life explained
- Phone compatibility
- Water resistance ratings
- Sensors explained
- Mibro smartwatches
- All models
Last verified September 26, 2026
Features change with updates. Check the maker's current details. See our methodology