Xiaomi Watch S2 vs Huami Amazfit Stratos 3 comparison
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| key specs |
| Strap Colour | Black, Light Gold and Silver | - |
| Display Size | 42mm | - |
| Compatible OS | Android, iOS | - |
| Strap Material | Leather | Silicone |
| Dial Shape | Round | Round |
| Display Type | AMOLED | - |
| Ideal For | Unisex | - |
| general |
| Brand | Xiaomi | Huami |
| Model | Watch S2 | Amazfit Stratos 3 |
| Release date | January 10, 2022 | August 27, 2019 |
| Model Name | Xiaomi Watch S2 | Stratos 3 |
| Dial Colour | Black | - |
| Dial Shape | Round | Round |
| Strap Colour | Black, Light Gold and Silver | - |
| Strap Material | Leather | Silicone |
| Size | Large | - |
| Touchscreen | Yes | Yes |
| Interchangeable Strap | Yes | - |
| Water Resistant | Yes | 5ATM |
| Water Resistance Depth | 5ATM | 50 Meters |
| Usage | Fitness & Outdoor | For Sports |
| Ideal For | Unisex | - |
| Dial Material | - | Stainless Steel |
| product details |
| Closure | Strap Buckle | - |
| Sensor | Blood Oxygen Monitor, Heart Rate Monitor | BioTracker PPG Bio-Tracking optical sensor, 6-axis acceleration sensor, 3-axis geomagnetic sensor, Air pressure sensor |
| Compatible Device | Android, iOS | Android 5.0 or iOS 10.0 and above |
| Notification | Message | Yes |
| Battery Type | 305 | Lithium-ion polymer battery |
| Battery Life | 12 Days | 7 days in smart mode |
| Rechargeable Battery | Yes | - |
| Notification Type | - | Calls, Messages, App Alerts |
| Charge Time | - | 2.5 hours |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | 5.0 |
| GPS | Yes | Yes |
| Third Party App Support | Yes | - |
| Call Features | call, answer, reject and mute calls | - |
| Other Connectivity Features | Notifications | - |
| Wi-Fi | - | Yes |
| platform and storage features |
| Operating System | MIUI Watch OS | Amazfit OS |
| Compatible Operating System | Android, iOS | - |
| Number of Cores | - | dual-core |
| RAM | - | 512MB |
| Processor Speed | - | 1200 |
| Internal Memory | - | 2GB |
| camera and display features |
| Display Resolution | 466X466 | 320x320 |
| Display Size | 42mm | - |
| Display Type | AMOLED | - |
| Other Display Features | Touch Screen | - |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | - |
| Calendar | Yes | - |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | - |
| Calorie Count | - | Yes |
| Number of Buttons | - | 4 |
| Other Fitness Features | - | 80 Sports Modes |
| dimensions |
| Thickness | - | 13.4 mm |
| Diameter | - | 48.6mm |
| Weight (g) | - | 40.40 |
| audio and video features |
| Audio Features | - | Standalone Music Playback |
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