Display
- Samsung Galaxy Watch 7
- 44 mm: 480 × 480 pixels; 40 mm: 432 × 432 pixels
- Xiaomi Watch S4
- 466 × 466 pixels; 326 ppi
Wearable comparison
Samsung Galaxy Watch 7 vs Xiaomi Watch S4
Compare battery life, health tracking, display and fit.
01Selected  Samsung Galaxy Watch 7
KSh 22,500In Stock | 02  Xiaomi Watch S4
KSh 21,940In Stock |
|---|
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2 of 4 products
Our quick verdict
The Xiaomi Watch S4 lasts longer between charges (up to 15 days), works with Android phones and iPhones and syncs with apps such as Strava, while the Samsung Galaxy Watch 7 takes ECG heart-rhythm readings, is lighter to wear all day and offers hypertension notifications.
Software
- Samsung Galaxy Watch 7
- Runs Wear OS 5; One UI 6 Watch
- Xiaomi Watch S4
- Runs Xiaomi HyperOS 2
Battery life
- Samsung Galaxy Watch 7
- Up to 40 hours per charge
- Xiaomi Watch S4
- 486 mAh battery
Portability
- Samsung Galaxy Watch 7
- 33.8 g
- Xiaomi Watch S4
- About 44.5 g
Water resistance
- Samsung Galaxy Watch 7
- IP68 water and dust resistance
- Xiaomi Watch S4
- 5 ATM
Key differences
The main differences to help you choose.
Samsung Galaxy Watch 7
- Lighter: 33.8 g (vs about 44.5 g).
- ECG heart-rhythm readings.
- Blood-pressure (hypertension) notifications.
- Slimmer: 9.7 mm thick (vs 12 mm).
Xiaomi Watch S4
- Longer rated battery life: up to 15 days (vs 40 hours).
- Works with Android phones and iPhones.
- Syncs with third-party apps such as Strava and Apple Health.
What matters most to you?
6 priorities selected.
| Priority | Samsung Galaxy Watch 7 | Xiaomi Watch S4 |
|---|---|---|
| Battery life | Up to 40 hours per charge | 486 mAh battery |
| Portability | 33.8 g | About 44.5 g |
| Display | 1.5-inch OLED display | 1.43-inch OLED display, 60 Hz, 326 ppi |
| Software | Wear OS 5 | Xiaomi HyperOS 2 |
| Connections | Bluetooth 5.3 | Bluetooth 5.3 |
| Battery capacity | 44 mm: 425 mAh | 486 mAh battery |
| Water resistance | IP68 water and dust resistance | 5 ATM |
| Sensors | Samsung BioActive: optical heart-rate, electrical heart signal, bioelectrical impedance analysis | Heart-rate and blood-oxygen sensor, accelerometer |
| Sleep tracking | Sleep tracking, sleep coaching and sleep-apnoea features where available | Sleep tracking |
| Charging | Fast wireless charging, WPC-based | 2-pin magnetic charging dock |
| Microphone | Supported | 2 microphones |
| NFC | Supported | Supported (regional availability) |
| Positioning / GNSS | Dual-frequency GPS, L1 + L5 | GPS, galileo |
| Controls / buttons | Touchscreen and physical buttons | Rotating crown and side button |
| Training & outdoor features | Dual-frequency route tracking | Running-form metrics, professional skiing mode |
Tick a topic above to see how each product answers it.
Detailed comparison
Explore the full specifications, section by section.
These products have the same published specifications.
Similarities
- Both have NFC.
- Both have an aluminium case.
- Both are water resistant to 50 m.
- Both take calls over Bluetooth.
- Both have OLED displays.
- Both have similar screen sizes (1.5 and 1.43 inches).
In summary
Get the Xiaomi Watch S4 if you want longer battery life and a choice of Android phone or iPhone, or the Samsung Galaxy Watch 7 if you would rather have ECG heart-rhythm readings and a lighter watch for all-day wear.
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