Xiaomi Watch S3
Swappable magnetic bezels, dual-band GPS and a 466×466 AMOLED for under $150.
The Xiaomi Watch S3 (2024) is a smartwatch with a list price of $149 in our database. It is rated for about 15 days per charge, weighs 44 g with a 47 mm case and an AMOLED display, and includes built-in GPS and blood-oxygen (SpO₂). It works with both iPhone and Android.
Specs last updated
Specifications
What it is good at
- Long battery: rated about 15 days per charge, more than 97% of the smartwatches in our database.
- Good value: listed at $149, cheaper than 93% of the smartwatches in our database.
- Bright, vivid AMOLED display.
Best for
Features
Who should skip it
- You have a small wrist (under about 160 mm) — the 47 mm case we list is large (check whether a smaller size is sold).
Where it ranks #1 in our quiz
The Xiaomi Watch S3 is the top pick for these standard profiles. Each page shows the full scoring breakdown.
Frequently asked questions
How long does the Xiaomi Watch S3 battery last?
The manufacturer rates it at about 15 days per charge. Always-on display, constant GPS and cellular use shorten that. Among the 30 smartwatches in our database it beats about 97% on rated battery life.
Does the Xiaomi Watch S3 work with iPhone and Android?
It works with both iPhone and Android.
Can I swim with the Xiaomi Watch S3?
5ATM is suitable for showering and pool swimming, but not for high-speed water sports or diving. It has no dedicated swim-tracking mode in our data.
How much does the Xiaomi Watch S3 cost?
Our database lists $149 (May 2026). That is a list price, not today's price, so check the Amazon listing before you buy.
Who should not buy the Xiaomi Watch S3?
It is a poor fit if any of these apply. You have a small wrist (under about 160 mm) — the 47 mm case we list is large (check whether a smaller size is sold).