XIAOMI

XIAOMI M2457B1 Fitness Tracker

Fitness Tracker
Black
0.6 ounces

4.3/ 5 on Amazon172Amazon ratings400+bought last month3.8ProductDome score

Better rated than 57%

Medium confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology

Best forYou want the lightest possible tracker on your wrist and are comfortable checking the current listing for full feature details.

A very light XIAOMI wrist tracker in black, though the available spec sheet only confirms weight and color, not sensors or battery life.

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ProductDome scorecard

How it ranks among the 44 fitness trackers we track

3.8/ 5ProductDome scoreMedium confidence

Owner satisfaction · 56% of scorecategory median 4.2★4.3

4.3★ across 172 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 643 ratings2.8

172 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.5

400+ bought on Amazon last month.

Data quality · 11% of score2.5

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 44 fitness trackers we track - how the scorecard works · full fitness trackers data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

The XIAOMI M2457B1 is a wearable fitness tracker weighing just 15.95 grams, sold in black. It is a light, band-style tracker, though the listing does not detail sensors, battery life or display specs.

At under 16 grams, this tracker is built to sit unobtrusively on the wrist through workouts and sleep tracking alike. The listing itself is thin on feature specifics beyond weight and color, so shoppers wanting confirmation on battery life or tracked metrics should check the current Amazon listing before buying.

15.95 gram weight
Black colorway
XIAOMI branded
Wrist worn fitness tracker format

Who it's for

Fits anyone who wants a minimal, lightweight wrist tracker and does not need a feature heavy smartwatch. Less useful for buyers who need confirmed specs like GPS or water resistance before purchasing, since those are not listed here.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

Very lightweight at under 16 grams

What to check first

Listing provides no detail on battery life, sensors or display
Feature set beyond weight and color is unconfirmed

Performance notes

A 15.95 gram build points to a slim band-style tracker rather than a bulkier smartwatch, which usually means less strain on the wrist during sleep tracking and long workouts.

Specifications

Brand	XIAOMI
Model	M2457B1
Color	Black
Item Weight	0.6 ounces

How it compares

This product against the closest alternatives we track in fitness trackers.

Product	Amazon rating	Ratings	ProductDome score
XIAOMI M2457B1 Fitness TrackerThis product	4.3 / 5	172	3.8 / 5
Garmin 010-02809-00 Fitness TrackerGarmin	4.7 / 5	1,974	4.4 / 5
Fitbit B0B5F9SZW7 Fitness TrackerFitbit	4.2 / 5	24,802	4.4 / 5
SAMSUNG SM-R390 Fitness TrackerSamsung	4.4 / 5	5,770	4.3 / 5
WHOOP 973-002-000 Fitness TrackerWHOOP	4.3 / 5	3,754	4.3 / 5

Frequently asked

Questions about the XIAOMI M2457B1

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How much does the XIAOMI M2457B1 weigh?

15.95 grams.

What color options are available?

Black.

What health metrics does it track?

The available spec data does not list tracked metrics, so check the current Amazon listing for that detail.