Xiaomi Smart Band 9 : 50 meters waterproof (5ATM)
Meet the Smart Band 9 – your new fitness sidekick that’s as relentless as your workout routine. Picture this: a 1.62-inch AMOLED screen so bright (we’re talking 1200nits peak brightness) it laughs in the face of sunlight, plus it tweaks its glow automatically because, let’s be honest, who has time for manual adjustments?
Dive into your swim sessions without a second thought, thanks to its 50 meters waterproof (5ATM) prowess. (Just maybe skip the hot tubs and deep-sea adventures, okay?) Inside, high-precision sensors are working overtime to track your heart rate, check your blood oxygen levels, and even judge your sleep – all to give you the dirt on how to snooze better. And with a 21-day battery life, it’s basically the marathon runner of fitness trackers. Pair it up via Bluetooth 5.4, and you’re golden.
Oh, and it’s dressed to impress with a 2.5D tempered glass cover and an aluminum alloy middle frame, wrapped in a TPU wristband that fits just about any wrist (135-210mm, to be exact). Plays nice with Android 8.0 or iOS 12.0 and up, and speaks your language – whether that’s English, Simplified Chinese, or Traditional Chinese.
Features
- 1.62-inch AMOLED screen with 1200nits peak brightness
- High-precision sensors for heart rate, blood oxygen, and sleep monitoring
- 21 days long battery life
- Bluetooth 5.4 connectivity
- 50 meters waterproof (5ATM)
General specs
- Brand: Xiaomi
- Model: Smart Band 9
- Seller: Sunsky
- ID: 3347723
- Weight: 15.8g (without wristband)
- Size: 46.53x21.63x10.95 mm
- Screen size and type: 1.62-inch AMOLED screen
- Screen Resolution: 192x490
- Screen brightness: 1200nit
- Cover material: 2.5D tempered glass cover
- Shell material: aluminum alloy middle frame + fiber high-strength polymer
- Sensor: accelerometer, gyroscope sensor, optical heart rate and blood oxygen sensor, ambient light sensor
- Waterproof level: 5ATM
- Wireless connection: Bluetooth 5.4
- Vibration motor: linear motor
- Battery Capacity: 233mAh
- Charging Time: about 60min
- Adjustable length of wristband: 135-210mm
- Wristband Material: TPU
- System Language: Simplified Chinese, Traditional Chinese, English
- Supported Systems: Android 8.0 or iOS 12.0 and above
- Supporting APP: Xiaomi Sports Health
- First listed by seller: 2/8/25
If you are interested in more details, you can find full information on the seller's page.
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| Brand | Xiaomi | Xiaomi | Xiaomi | Xiaomi | Sunorshop | |
| Model | Smart Band 9 | M2345B1 | Watch 5 | M2457B1 | 2025 New | |
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| Price | $47.10 | $59.99 | $83.10 | $44.07 | $29.99 | $14.99 |
| Seller | Sunsky | Amazon | Sunsky | Sunsky | Amazon | Amazon |
| Update | Feb 7, 2025 | Dec 6, 2025 | Jan 24, 2026 | Jan 31, 2026 | Dec 6, 2025 | Dec 6, 2025 |
| Weight | 15.8g (without wristband) | 33.5 | 15.95g (without strap) | |||
| Battery Life | <num_from>, <num_to> | 21 days | 5-7 days | 5-7 days of normal use, 30 days standby | ||
Xiaomi Smart Band 9 50 meters waterproof (5ATM)
Reviews
Jacob Santos
February 8, 2025
Grace Kwiatkowski
February 8, 2025
Samuel García
February 8, 2025
Duke
February 8, 2025
Sophia Díaz
February 8, 2025
Miguel Mitchell
February 8, 2025