Xiaomi Watch S3 Premium Smartwatch with AMOLED Display, Advanced Health Tracking, GPS, and Long Battery Life

486mAh is the genuine, specific battery capacity behind the Xiaomi Watch S3, with Xiaomi claiming up to 15 days of typical use — independent testing found a real average daily drain of about 10% with GPS and continuous heart rate monitoring active.

Xiaomi Watch S3: The Battery Life

This kind of independently measured drain figure gives a more realistic picture than the official marketing claim alone.

Xiaomi’s official claim of up to 15 days assumes typical use with the always-on display disabled; independent testing specifically found around 10% daily drain with raise-to-wake, music controls, notifications and GPS in regular use.

The Interchangeable Bezel

This kind of physical customisation goes beyond software watch faces alone, changing the entire look and feel of the device.

A stainless steel bezel detaches with a counterclockwise twist using a bayonet-style camera-lens mount, and each bezel style comes with its own dedicated watch face — a real customisation feature beyond simply swapping straps.

Full independent review detail is in this independent Xiaomi Watch S3 review.

Browse more in our smart watches collection, or see everything we carry from Xiaomi.

Xiaomi Watch S3: The 1.43-Inch AMOLED Display

466 x 466 pixel resolution at 600 nits peak brightness delivers punchy colours and crisp text, though independent testing noted direct sunlight can still be a genuine struggle despite the disclosed brightness rating.

Who This Suits

It also suits anyone wanting a single watch that switches styles easily for both formal occasions and workouts.

This suits anyone wanting genuine style customisation alongside solid fitness tracking and accurate GPS, without needing a bulky sports watch. For anyone specifically prioritising smaller wrist comfort, the 47mm case size is worth trying on first, as independent reviewers noted it runs larger than expected.

Xiaomi Watch S3: The Dual-Band GNSS

More precise location tracking matters for runners and hikers navigating unfamiliar routes far from home.

Dual-band GNSS improves outdoor location accuracy by using two frequency bands across GPS, GLONASS, Galileo, BeiDou and QZSS simultaneously, a real technical advantage over single-band positioning that struggles more in dense urban areas.

The Technical Specifications

• Model: Xiaomi Watch S3
• Display: 1.43″ AMOLED, 466x466px, 600 nits
• Battery: 486mAh (up to 15 days claimed)
• Water Resistance: 5ATM
• GNSS: Dual-band (GPS, GLONASS, Galileo, BeiDou, QZSS)
• Bezel: Interchangeable, bayonet mount
• Straps: 22mm, detachable
• Bluetooth: 5.2
• Sensors: Heart rate (12-channel), SpO2, sleep tracking
• Connectivity: NFC, Wi-Fi
• Warranty: 1-year warranty from Totot

The FAQ – Xiaomi Watch S3

How long does the battery and really last?

Xiaomi claims 15 days; independent testing found roughly 10% daily drain with GPS and notifications active.

Can I and really change the bezel myself?

Yes, a twist-and-release bayonet mount lets you swap bezels and their matching watch faces.

Is the screen readable in bright direct sunlight?

It can be a struggle in bright sunlight, according to independent testing, despite the 600-nit rating.

Does it track sleep and heart rate quite accurately?

Yes, a 12-channel heart rate sensor and sleep tracking are included and independently found reliable.

Is it quite comfortable for smaller wrists?

Independent reviewers found the 47mm case runs larger than expected, so trying it on first is recommended.

Does it support NFC payments even in the UAE?

NFC payment availability depends on local bank partnerships; check current Xiaomi Wallet compatibility for your specific bank.

Does Totot deliver across the UAE?

Yes. We ship nationwide via Aramex for a fixed AED 10, with cash on delivery, Tabby and Tamara available at checkout.

Please note: The fitness and wellness sensors in this product are intended for sport and general activity tracking and are not a medical device. Readings are approximate and are not intended to diagnose, monitor or treat any medical condition. Consult a qualified doctor for any health-related decision.