Xiaomi Smart Band 9
21-day battery in a $50 AMOLED band — unbeatable wellness tracker for the price.
The Xiaomi Smart Band 9 (2024) is a fitness band with a list price of $49 in our database. It is rated for about 21 days per charge, weighs 16 g with a 47 mm case and an AMOLED display, and includes blood-oxygen (SpO₂). It works with both iPhone and Android.
Specs last updated
Specifications
What it is good at
- Long battery: rated about 21 days per charge, more than 100% of the fitness bands in our database.
- Light on the wrist: 16 g, lighter than 100% of the fitness bands in our database.
- Good value: listed at $49, cheaper than 100% of the fitness bands in our database.
- Bright, vivid AMOLED display.
Best for
Features
Who should skip it
- You want to run or ride without your phone — it has no built-in GPS.
- You have a small wrist (under about 160 mm) — the 47 mm case we list is large (check whether a smaller size is sold).
Frequently asked questions
How long does the Xiaomi Smart Band 9 battery last?
The manufacturer rates it at about 21 days per charge. Always-on display, constant GPS and cellular use shorten that. Among the 6 fitness bands in our database it beats about 100% on rated battery life.
Does the Xiaomi Smart Band 9 work with iPhone and Android?
It works with both iPhone and Android.
Can I swim with the Xiaomi Smart Band 9?
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 Smart Band 9 cost?
Our database lists $49 (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 Smart Band 9?
It is a poor fit if any of these apply. You want to run or ride without your phone — it has no built-in GPS. You have a small wrist (under about 160 mm) — the 47 mm case we list is large (check whether a smaller size is sold).