The Xiaomi Watch S4 Silver is the lighter-toned version of Xiaomi’s 2025 round smartwatch: an aluminium-alloy case with a high-gloss PVD finish, Xiaomi’s standard Silver bezel and strap kit, a rotating crown and a 1.43-inch AMOLED display. Inside it is the same watch as the Black and Rainbow versions, with a 486 mAh battery rated for up to 15 days in Xiaomi’s typical-use test, Bluetooth calling through a speaker and two microphones, an independent dual-frequency GNSS chip and 5ATM water resistance. It runs Xiaomi HyperOS 2 and pairs with Android 8.0+ and iOS 14.0+ phones.
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Why choose the Silver finish
Silver is the version that looks most like a traditional dress watch. A bright case and bezel catch the light the way a steel watch does, so the Xiaomi Watch S4 Silver sits comfortably with a shirt and blazer, a white kandura or a light summer outfit, and it does not shout “fitness tracker” in a meeting. The light tones of the Xiaomi Watch S4 Silver also hide fine scratches and dust on the case better than a dark finish does. The trade-off is that a light strap shows sweat marks and dirt sooner than black, so give it a quick rinse after the gym. The fluororubber strap adjusts from about 140 to 210 mm, which fits most wrists, and the bezel can be swapped later because Xiaomi sells other bezel kits separately.
Display: 1.43-inch AMOLED for UAE sunlight
The Xiaomi Watch S4 Silver screen is a 1.43-inch AMOLED panel at 466 × 466 pixels, about 326 PPI, with a 60Hz refresh rate that Xiaomi says varies by interface. Xiaomi lists up to 1500 nits in HBM mode with the whole screen lit, and up to 2200 nits peak when only a small area is highlighted. In practice that means the time and workout data stay readable outdoors in strong sun. Turning the crown scrolls through widgets and message previews, and gestures can be set to reject calls, mute notifications or trigger the phone camera, with conditions Xiaomi lists about arm position and modes such as Sleep, Do Not Disturb, Power Saving or AOD.
Battery life and what 15 days assumes
Xiaomi rates the Xiaomi Watch S4 Silver at up to 15 days of typical use, measured in its own labs. The test watch had high-precision sleep, sleep breathing quality, all-day stress and all-day blood oxygen monitoring switched off, checked heart rate every 10 minutes, and handled 100 messages, 2 calls and 3 alarms a day, 200 wrist-raise screen wakes a day, 15 minutes of Bluetooth calls and 90 minutes of exercise a week. Turn on the all-day health features or use GNSS often and the figure drops; Xiaomi does not publish a heavy-use or always-on number. For the Xiaomi Watch S4 Silver, five minutes on the 2-pin magnetic dock adds about two days of use, according to Xiaomi.
Calls, notifications and NFC
On the Xiaomi Watch S4 Silver, a speaker and two microphones let you take ordinary phone calls on the wrist while the watch stays connected to your phone over Bluetooth 5.3. There is no eSIM, and Xiaomi states that voice calls from third-party apps are not currently supported, so WhatsApp calls still ring on the phone. NFC is supported for contactless payment with Mastercard and Visa, but Xiaomi notes that availability varies by region and bank. Some features need the Mi Fitness app running in the background, and the Xiaomi Smart Hub controls for Xiaomi Home devices need a Xiaomi phone or tablet on HyperOS 2.
Health tracking and 150+ sports modes
A one-tap check measures heart rate, stress, blood oxygen and sleep and gives a short report in about 60 seconds. Xiaomi claims heart-rate accuracy of up to 98% in its lab tests covering sitting, office reading, treadmill and outdoor running, walking and cycling, and states clearly that the watch is not a medical device. For training, the Xiaomi Watch S4 Silver offers more than 150 sports modes and has an independent L1+L5 dual-frequency GNSS chip using GPS, Galileo, GLONASS, BeiDou and QZSS, so outdoor runs and rides are tracked without the phone. Sensors include an accelerometer, gyroscope, compass, barometer and ambient light sensor, and the 5ATM rating covers pool and shallow-water swimming.
Who This Is Not For
The Xiaomi Watch S4 Silver is not for anyone who wants to leave the phone at home: it has no eSIM, and calls only work with the phone connected. It cannot answer WhatsApp or other app voice calls. The 5ATM rating does not cover hot showers, saunas or diving, and Xiaomi warns the rating may decline over time. iPhone users lose the Xiaomi Smart Hub features, and the light strap needs more frequent cleaning than the black one. It is a fitness tool, not a medical device.
Ordering from Totot
Totot sells the Xiaomi Watch S4 Silver brand-new and genuine in its sealed box, backed by a 1-year warranty from Totot. We deliver UAE-wide in up to 3 business days, and delivery is free on orders from AED 300, with cash on delivery or instalments via Tabby and Tamara. Items that arrive defective or not as ordered can be returned within 14 days, and any shipping damage should be reported within 48 hours of delivery. Browse more in our Smart Watches range, or see the official Xiaomi Watch S4 specifications page.
Xiaomi Watch S4 Silver Specifications
- Model: Xiaomi Watch S4 (47.3 mm case, 1.43-inch display)
- Colour: Silver (standard Silver bezel and strap kit)
- Display: 1.43-inch AMOLED, 466 × 466 px, about 326 PPI, 60Hz (varies by interface)
- Brightness: Up to 1500 nits HBM (full screen); up to 2200 nits peak (small area)
- Case: Aluminium alloy with high-gloss PVD finish
- Dimensions: 47.3 × 47.3 × 12.0 mm (excluding strap and protrusions)
- Weight: About 44.5 g without strap
- Strap: Fluororubber, adjustable about 140–210 mm
- Battery: 486 mAh; up to 15 days typical use (Xiaomi lab test); 5 min charge ≈ 2 days
- Charging: 2-pin magnetic charging dock
- Sensors: Heart rate (with SpO2), accelerometer, gyroscope, ambient light, electronic compass, barometer, Hall sensor
- Positioning: Dual-frequency L1+L5 GNSS: GPS, Galileo, GLONASS, BeiDou, QZSS
- Sports modes: 150+
- Calling: Bluetooth calls, speaker + 2 microphones; phone must stay connected; no third-party app voice calls
- NFC: Supported (Mastercard, Visa; availability varies by region and bank)
- Water resistance: 5ATM (pool and shallow water; not hot water, sauna or diving)
- Connectivity: Bluetooth 5.3
- Operating system: Xiaomi HyperOS 2
- Compatibility: Android 8.0+ or iOS 14.0+
- In the box: Watch (with bezel and strap), magnetic charging dock, user manual
- Warranty: 1-year warranty from Totot
Xiaomi Watch S4 Silver FAQ
Does the Xiaomi Watch S4 Silver have an eSIM?
No. It connects to your phone over Bluetooth 5.3, and calls only work while the phone is connected.
Can I answer WhatsApp calls on it?
No. Xiaomi says voice calls from third-party apps are not currently supported; normal phone calls work.
Is the 15-day battery realistic?
Yes, under Xiaomi’s typical-use test with all-day SpO2, stress and high-precision sleep monitoring switched off; enabling them shortens it.
Can I swim with the Xiaomi Watch S4 Silver?
Yes, in a pool or shallow water thanks to 5ATM, but not in hot water, saunas or while diving.
Does it work with an iPhone?
Yes, with iOS 14.0 or later, though Xiaomi Smart Hub features need a Xiaomi phone or tablet on HyperOS 2.
Will the silver strap get dirty?
Yes, lighter straps show sweat and dirt sooner than black; rinsing the strap and bezel after exercise keeps it clean.
Is it genuine?
Yes. We sell the genuine Xiaomi Watch S4 Silver, brand-new in its sealed box.
How long does delivery take?
No more than 3 business days to any emirate, free from AED 300; the live fee for your order appears at checkout.
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