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Redmi Watch 4 Obsidian Black

Redmi Watch 4 Obsidian Black

£89.50 - £89.50
£89.50
£89.50 - £89.50
£89.50
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This product ships directly from our partner, so it might come separately if ordering multiple items.

Upgraded next-gen quick-release structure makes strap replacement easier. Diverse strap options* mean you can switch up your style on a whim.

Discover our extensive range of chic watch faces to match your unique style. Featuring a variety of fun watch faces and customisable components, style and functionality are yours to command.

Equipped with an independent GNSS chip, it works in tandem with your smartphone or on its own. Five satellite positioning systems are supported to accurately track your every step.

Notes:
*The data of battery life is based on Typical Usage mode, tested by Xiaomi Internal Labs. Actual results may vary.
*20 days typical usage mode test conditions: Full charge, factory default settings, static dial, with high-precision sleep monitoring, sleep breathing quality monitoring, all-day stress monitoring, and all-day blood oxygen monitoring turned off. Daily every 10 minutes heart rate detection, and message notifications (100 messages, 2 calls, and 3 alarms a day) turned on. Wrist raised to engage the screen 200 times a day; manually start the app to sync data once a day; 15 minutes of Bluetooth calls every week; use exercise record for 90 minutes every week (GNSS on).
*10 days AOD mode testing conditions: Full charge, factory default settings, static dial, AOD intelligent information screen on. High-precision sleep monitoring, sleep breathing quality monitoring, all-day stress detection, and all-day blood oxygen detection turned off. Daily every 10 minutes heart rate detection, and message notifications (100 messages, 2 calls, and 3 alarms a day) turned on. Wrist raised to engage the screen 200 times a day; manually start the app to sync data once a day; 15 minutes of Bluetooth calls every week; use exercise record for 90 minutes every week (GNSS on).
*30 days long battery mode testing conditions: Full charge, factory default settings, static dial. High-precision sleep monitoring, sleep breathing quality monitoring, all-day stress detection, all-day blood oxygen detection, all-day heart rate detection turned off. Message notifications (100 messages, 1 call, and 1 alarm a day), wrist raised to engage the screen 20 times a day.
*The watch must be kept connected to the smartphone's Bluetooth. The voice calls from third-party app are currently not supported.
*This product and its features are not designed for medical purposes, and are not intended to predict, diagnose, prevent, or cure any diseases.
*Data are derived from Xiaomi Internal Labs and compared with Redmi Watch 3. Results may vary due to differences in testing equipment, environment, and individual usage patterns and habits. Please refer to the actual data.
*The aluminum alloy frame refers to the frame part of the watch body, not the entire watch.
*The product comes with a black or white TPU strap. Straps of other colours displayed on this webpage must be purchased separately.
*This product is not designed as a medical device, nor is it intended to diagnose, treat, cure, or prevent any disease. All data and measurements are for personal reference only and shall not be used as a basis for diagnosis and treatment.
*After the device is turned on for all-day heart rate monitoring, it will monitor at a certain frequency during the day. For more details about the monitoring frequency and principle, please refer to the description in the APP.
*The breathing excercise function needs to be manually enabled.
*Needs to be manually turned on by the user to monitor the user's blood oxygen status. For more details about the monitoring frequency and principle, please refer to the description in the APP.
*The warm-up session applies only in selected sports modes.
*The rating is based on ISO 22810:2010 standard. Test report number is 68.189.23.0305.02. The watch can be worn in swimming pools, while swimming near the shore, or during other shallow-water activities. It cannot be used in hot showers, saunas, or when diving. Please avoid the watch being directly impacted by swift currents during water sports. The level of water resistance is not permanent and may deteriorate over time.
*To use this feature, you must enable it and set an emergency contact in the app and the watch should be kept connected to your smartphone over Bluetooth.
*The product images and models, data, functions, performance, specifications, user interface, and other product information on this page are for reference only and may differ from the actual product. Xiaomi may amend this information. For details, please refer to the actual product.

Dimensions
47.5mm x 41.1mm x 10.5mm
*Height, width and thickness dimensions exclude the strap and protrusions
31.5g (without inbox strap)

Frame
Aluminum alloy frame

Strap
Obsidian Black: TPU strapsize: 135mm ~ 205mm
Silver Gray: TPU strapsize: 135mm ~ 205mm

Sensors
Heart rate sensor (with blood oxygen sensor) | Accelerometer | Gyroscope | Ambient light sensor | Electronic compass

Satellite positioning systems
GPS | Galileo | Glonass | BeiDou | QZSS

Battery
Typical use time: 20 daysCapacity: 470mAh

Display
Ultra-large 1.97" Square AMOLED display60Hz refresh rateLTPS 5HzBrightness: Up to 600 nits

Specifications
Built-in GNSS: supportedSpeaker: supportedBluetooth call: supported5ATM water resistance

Package contents
Redmi Watch 4 / Magnetic charging cable / User Manual (including warranty notice)