Mibro C4: specs, who it fits and compatible phones
Mibro C4 is a smartwatch released in 2024 that works with iPhone and Android. It lists Built-in GPS, 2ATM and SpO2, Heart rate.
Specifications
| Release year | 2024 |
|---|---|
| Case size | 45 mm (approx.) |
| Battery as listed | Up to 10 days daily · 45 days basic |
| Water rating | 2ATM |
| Case material | Slim (approx.) |
| GPS type | Built-in GPS |
| Operating system | Not listed |
| 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.
Overview
The Mibro C4 (2024) is a slim budget smartwatch from Xiaomi's ecosystem chain, built around a large screen and long battery: up to 10 days of daily use and 45 days in basic mode, with Bluetooth calling, at a $49.99 official sale price.
What it does well
- Two-tier battery. Up to 10 days of normal use, stretching to 45 days in a basic mode that trims features.
- Bluetooth 5.3 calling, listed at up to 6 hours of continuous talk.
- 100+ sport modes for casual fitness tracking.
- Slim body for the price class.
- Built-in GPS, listed by Mibro for location tracking.
Tradeoffs to know
- Bluetooth calling covers answering and hanging up calls; other call functions have not been verified for this model.
- Water rating is 2ATM; Mibro lists a Pool Swim mode and says it handles sweat, splashes and short swims.
- The screen panel type is unverified in our data; \"large screen\" is the maker's wording.
- Third-party app support has not been verified for this model.
Price and availability
$49.99 official sale price (list $54.99) from the Mibro store. Prices can change.
FAQ
Does the Mibro C4 have GPS?
Yes. Mibro lists built-in GPS for location tracking.
Can it swim?
Mibro lists a Pool Swim mode and says the C4 handles sweat, splashes and short swims. Follow the manufacturer's water-use limits.
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 Active Edge | 2024 | 46.6 mm | Up to 16 days | 10ATM | Standard GPS | iOS and Android |
| Amazfit Bip 5 Unity | 2024 | Not listed | Up to 11 days | IP68 | None | iOS and Android |
| Blackview W50 Pro | 2024 | 47 mm (approx.) | 960mAh · over 30 days of use · 100 days standby | IP68 (approx.) | Not listed | iOS and Android |
Compared with Amazfit Active Edge, Mibro C4 lists a lower ATM rating (2 against 10).
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