XIAOMI Smart Band 10 Fitness Watch M2457B1
- Built-in GPS, 50 meter water depth
- 1.74 inch AMOLED, 192 x 490, 1500 nit
- 233 milliamp hour cell, 1 hour charge time
- Heart rate, stress, sleep and blood oxygen metrics
- 64 MB storage, Bluetooth
- 15.95 gram weight, TPU band
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A light AMOLED band with on-board satellite tracking and a deep water rating, for runners who want routes without a phone. No runtime in days is given, and the cell type reads oddly.
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ASIN: B0F9176WJQModel: M2457B1Category: Fitness Trackers
Overview
A morning run route is where the Xiaomi M2457B1 earns its keep, with built-in GPS, a tall AMOLED screen and a thermoplastic polyurethane band. It talks to the Mi Fitness app over Bluetooth and delivers notifications.
A bright, tall screen and positioning on the band cover route tracking and quick glances. The limitation is the battery data: a capacity is given but no runtime, and the cell is listed as NiMH.
Who it's for
Outdoor runs, rides and everyday wear with an Android or iOS phone are the setting. Anyone who needs calls from the wrist, a cellular connection or a documented battery life should look closer first.
Pros and cons
- Bright AMOLED screen
- Deep water depth rating
- Four health metrics
- Battery life in days not listed
- Cell type entry looks odd
- No cellular technology
- Small internal storage
Performance notes
Built-in GPS drains the cell faster than all-day tracking, so a long outdoor session shortens the runtime. Heart rate and oxygen readings come from optical sensing and need a snug band. The screen brightness setting also shifts battery life.
Where it stands among fitness trackers
- 233 mAh battery capacity: longer than 70% of the fitness trackers we list.
From the specs of the 43 fitness trackers we list; not a test result.
Specifications
| Brand | XIAOMI |
|---|---|
| Model | M2457B1 |
| Dimensions & fit | |
| Water Resistance Depth | 50 meters |
| Screen size | 1.74 inches |
| Item Weight | 15.95 grams |
| Item Dimensions D X W X H | 0.43"D x 0.85"W x 1.83"H |
| Capacity & performance | |
| Battery Capacity | 233 milliamp hourshigher than 70% of 28 fitness trackers |
| Memory Storage Capacity | 64 MBlower than 64% of 26 fitness trackers |
| Age Range Description | Adult |
| Power & efficiency | |
| Battery Charge Time | 1 hourlower than 68% of 20 fitness trackers |
| Battery Cell Type | NiMH |
| Construction & materials | |
| Band Material Type | Thermoplastic Polyurethane (TPU) |
| Color | Black |
| Compatibility & installation | |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Compatible Devices | Smartphone |
| Human Interface Input | Touchscreen |
| Warranty & support | |
| Supported Application | Mi Fitness |
| Warranty Type | Limited |
| Other details | |
| Gps Geotagging Functionality | Built-in GPS |
| Display Type | AMOLED |
| Resolution | 192 x 490 |
| Builtin Media | Charging Cable, User Manual, Watch Band |
| Metrics Measured | Heart Rate, Stress, Sleep Duration, Blood Oxygen |
| Maximum Display Brightness | 1500 nits |
| Additional Features | Activity Tracker, Cycle Tracking, GPS, Lightweight, Time Display |
| Closure Type | Buckle |
| Communication Feature | Notification |
| Operating System | Watch OS 8 |
| Shape | Rectangular |
| Sport Type | Cycling, Diving, Multi-Sports, Running |
| Style Name | Modern |
| Target Audience | Boys, Girls, Men, Women |
| Water Resistance Level | Waterproof |
| Waterproof Rating | 5ATM |
| Wearable Computer Type | Smart Watch |
Closest rivals on specs
FITVII HM57 Fitness Tracker with Calling- Screen Size 1.7 vs 1.9 inches (-11%)
Kriutefy Smart Watch Fitness Tracker- Memory Storage Capacity 0.06 vs 0.26 GB (-75%)
- Screen Size 1.7 vs 1.9 inches (-11%)
Samsung Galaxy Fit 3 Fitness Tracker 40mm- Memory Storage Capacity 0.06 vs 0.02 GB (+300%)
- Battery Capacity 233 vs 208 mAh (+12%)
- Item Weight 0.04 vs 0.11 pounds (-64%)
Frequently asked questions
Is the Xiaomi M2457B1 a cellular smartwatch?
No. The listing names notification as the communication feature and Bluetooth as the connection, with no cellular technology.
Does the Xiaomi M2457B1 have built-in GPS?
Yes. The GPS field reads built-in GPS and GPS is the satellite navigation system.
What comes in the Xiaomi M2457B1 box?
A charging cable, a user manual and a watch band.
Which app does the Xiaomi M2457B1 use?
The listing names Mi Fitness as the supported application.