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£129.99
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Xiaomi Watch S4 41mm Black HyperOS Smartwatch – AMOLED Display, Bluetooth Calling & GNSS
Trustpilot Rated Excellent 3,500+ Reviews
Condition
- New Out of stock
- Used - Like New Out of stock
- Used - Very Good Out of stock
- Used - Good Out of stock
Condition details
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Each condition grade explains the item’s expected cosmetic appearance. Used items are checked and tested before dispatch.
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Checked before dispatch
Warranty
12-month cover included
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Simple condition guide
Condition guide
New
Brand-new item
A brand-new, unused, unopened item in its original packaging, never worn, used, or activated, with all original packaging intact.
Like New
Pristine condition
The item appears as if it has just come out of a retail box. There are no signs of wear, and all original protective materials are intact. The item may have been opened or used very minimally but retains its pristine condition, and all original accessories are included.
Very Good
Minimal wear
The item shows minimal wear from general use and is 100% operational and functions as intended. It may have minor cosmetic imperfections but performs well, and may be missing non-essential accessories.
Good
Noticeable wear
The item is fully operational and functions as intended, but has noticeable wear from previous use. It may have aesthetic imperfections such as scratches or dents, and may be missing non-essential accessories.
Fair
Fairly worn
The item is fairly worn but continues to work perfectly. Signs of wear can include aesthetic issues such as scratches, dents, and worn corners, and it may be missing non-essential accessories.
Overview
Stay stylish, connected and active with the Xiaomi Watch S4 41mm Black HyperOS Smartwatch. Designed for everyday wear, fitness tracking, health monitoring and smart convenience, this compact smartwatch combines a bright 1.32-inch AMOLED display, premium stainless steel frame, built-in GNSS, Bluetooth calling, 150+ sport modes and long battery life in an elegant 41mm design. Whether you are tracking workouts, checking notifications, monitoring your health or taking calls from your wrist, the Xiaomi Watch S4 41mm offers a smart and refined wearable experience.
Key Features & Benefits
- Compact 41mm Design – The smaller case size is ideal for users who prefer a lighter, slimmer smartwatch that feels comfortable for daily wear and sleep tracking.
- Bright 1.32" AMOLED Display – Enjoy crisp, colourful visuals with 466 x 466 resolution, 352 PPI, 60Hz refresh rate and up to 1500 nits HBM brightness for clear viewing.
- Premium Stainless Steel Frame – Gives the watch a polished, durable and more refined look compared with basic plastic smartwatch designs.
- Black Fluororubber Strap – The comfortable black strap is practical for workouts, commuting and everyday use, with an adjustable fit for a wide range of wrists.
- Xiaomi HyperOS Experience – Runs Xiaomi HyperOS for smooth smartwatch interaction, widgets, notifications and connected Xiaomi ecosystem features.
- Bluetooth Calling from Your Wrist – Make and receive calls through the built-in speaker and microphone when connected to your smartphone via Bluetooth.
- Built-In GNSS Tracking – Supports GPS, Galileo, Glonass, BeiDou and QZSS for outdoor workout tracking and route recording.
- 150+ Sport Modes – Track a wide range of activities including running, walking, cycling, swimming, gym training and outdoor sports.
- Health Monitoring Tools – Includes heart rate, blood oxygen, stress, sleep and skin temperature tracking to help you better understand your wellbeing.
- Sleep Improvement Support – Tracks and analyses sleep, with guidance designed to help improve rest and recovery.
- Personal Safety Features – Supports emergency SOS, emergency siren and location sharing features where set up and supported.
- 5ATM Water Resistance – Suitable for pool swimming and shallow-water activities, making it practical for workouts and everyday wear.
- NFC Support – NFC is supported, with payment and service availability depending on region, bank and setup.
- Long Battery Life – Delivers up to 8 days light use, up to 4 days normal use and up to 3 days heavy use depending on settings and activity.
- Useful Daily Tools – Includes widgets and functions such as weather, music control, timer, stopwatch, compass, flashlight, camera control and find phone.
Why Choose This Product
The Xiaomi Watch S4 41mm Black is a strong choice for customers who want a compact smartwatch with a premium look, bright AMOLED display and practical everyday features. It offers Bluetooth calling, built-in GNSS, health tracking, sport modes, NFC support and long battery life in a slim 41mm design. For users who want a stylish smartwatch for fitness, notifications, calls and daily wellness without choosing a bulky case, the Watch S4 41mm delivers excellent usability and value.
Specifications Table
| Specification | Details |
|---|---|
| Brand | Xiaomi |
| Product Type | HyperOS Smartwatch / Fitness Watch |
| Model | Xiaomi Watch S4 41mm |
| Colour | Black |
| Case Size | 41mm |
| Dimensions | Approx. 41.2 x 41.2 x 9.5mm, excluding strap and protrusions |
| Weight | Approx. 32g, excluding strap |
| Frame Material | Stainless steel |
| Strap | Black fluororubber strap |
| Strap Fit | Approx. 120–190mm adjustable length |
| Display | 1.32-inch AMOLED display |
| Display Resolution | 466 x 466 pixels |
| Pixel Density | 352 PPI |
| Refresh Rate | 60Hz |
| Brightness | Up to 1500 nits HBM |
| Operating System | Xiaomi HyperOS |
| Wireless Connectivity | Bluetooth 5.4 |
| Bluetooth Calling | Yes, with built-in speaker and microphone |
| Speaker | Supported |
| Microphone | 1 microphone |
| GNSS | Built-in GNSS supported |
| Satellite Systems | GPS, Galileo, Glonass, BeiDou and QZSS |
| Sport Modes | 150+ sport modes |
| Health Sensors | Heart rate sensor with blood oxygen sensor, accelerometer, gyroscope, ambient light sensor, electronic compass, barometer sensor and temperature sensor |
| Health Features | Heart rate, SpO₂, stress, sleep, skin temperature and activity tracking |
| Safety Features | Emergency SOS, emergency siren and location sharing where supported |
| NFC | Supported, availability varies by region and bank |
| Water Resistance | 5ATM |
| Battery Capacity | 320mAh |
| Battery Life - Light Use | Up to 8 days |
| Battery Life - Normal Use | Up to 4 days |
| Battery Life - Heavy Use | Up to 3 days |
| Charging | 2-pin magnetic charging dock |
| Smartphone Compatibility | Android 8.0 and above, or iOS 14.0 and above |
| App Support | Mi Fitness app |
| Ideal Use | Fitness tracking, Bluetooth calls, health monitoring, notifications, swimming, daily wear and outdoor workouts |
| EAN | 6932554430580 |
Standard Delivery - £1.99 - 1–2 working days - (Free over £19.99)
Next Day Delivery - Free - Free on orders £49.99+
Express Delivery - £4.99 - (incl. Saturday)
Friday orders: Next-day delivery is not guaranteed.
For guaranteed Saturday delivery: choose Express (£4.99) (before 1pm).
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Deliveries to these areas may take 3–5 working days.
We offer a 30-day money-back guarantee on items returned in the same condition they were received.
If the product was supplied sealed, it must be returned sealed and unused to qualify for the money-back guarantee.
Opened items may still be returned, however the 30-day money-back guarantee will not apply.
For full details, please see our Returns Policy.
A brand-new, unused, unopened item in its original packaging, never worn, used, or activated, with all original packaging intact.
Like NewThe item appears as if it has just come out of a retail box. There are no signs of wear, and all original protective materials are intact. The item may have been opened or used very minimally but retains its pristine condition, and all original accessories are included.
Very GoodThe item shows minimal wear from general use and is 100% operational and functions as intended. It may have minor cosmetic imperfections but performs well, and may be missing non-essential accessories.
GoodThe item is fully operational and functions as intended, but has noticeable wear from previous use. It may have aesthetic imperfections such as scratches or dents, and may be missing non-essential accessories.
FairThe item is fairly worn but continues to work perfectly. Signs of wear can include aesthetic issues such as scratches, dents, and worn corners, and it may be missing non-essential accessories.
| SKU: |
RM154203SN0/RM154202SN0 |
|---|---|
| EAN/UPC: |
6932554430580 |
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Pay every 2 weeks in 4 interest-free payments.
Klarna's Pay in 3 / Pay in 30 days are unregulated credit agreements. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. Late fees may apply.
Buy now, pay later interest free instalments.
No hidden fees. This is a credit product. 18+.
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