Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
If you are interested in more details, you can find full information on the seller's page.
Smart watch fitness bracelet with a color screen, Bluetooth 5.0, and a heart-rate fitness function. Battery capacity: 135 mAh.
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
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Xiaomi Mi Band 4 135 mAh battery capacity
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Xiaomi Mi Band 4 Bluetooth version: BT 5.0
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Xiaomi Mi Band 4 Color screen
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Xiaomi Mi Band 4 Bluetooth 5.0
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Xiao mi Mi Band 4 Bluetooth 5.0
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Xiaomi Band 4 0.96-inch AMOLED color touchscreen
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| Brand | Xiaomi | Xiaomi | Xiaomi | Xiaomi | Xiao mi | Xiaomi |
| Model | Mi Band 4 | Mi Band 4 | Mi Band 4 | Mi Band 4 | Mi Band 4 | Band 4 |
| Price | $28.60 | $13.26 | $22.00 | $26.50 | $29.85 | $24.99 |
| Seller | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba | Alibaba |
| Update | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 |
| Display | Color screen | AMOLED color touch screen | Color screen | AMOLED color touchscreen | Color touch screen | 0.96-inch AMOLED color touchscreen |
| Model Name | Mi Band 4 | Mi Band 4 | Mi Band 4 | Mi Band 4 | Mi Band 4 | Band 4 |
| Product Type | Smart watch fitness bracelet | Smart fitness bracelet / wristband | fitness bracelet | Fitness bracelet | Smart fitness bracelet | Smart bracelet |
| Bluetooth Version | 5.0 | BT 5.0 | 5.0 | 5.0 | 5.0 | |
| Edition | Chinese Version | Chinese version | China version | |||
| Heart-rate feature | Heart rate | AI heart rate | Heart rate | |||
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