Huawei Watch D2

Name: Huawei Watch D2
Brand: Huawei
SKU: 9843

Manufacturer: Huawei

The Huawei Watch D2 is a health-focused smartwatch that packs a notable range of monitoring capabilities into a compact 40 g body. Its 1.82″ AMOLED display runs at 347 ppi with an always-on mode and touch input, while the replaceable band and 48 × 38 mm case dimensions keep the overall form practical for everyday wear. The device supports both iOS and Android, and its NFC chip enables contactless functionality alongside call answering and voice command support.

On the health and sensor side, the Watch D2 includes an ECG sensor alongside heart rate monitoring, SpO2 tracking, skin temperature sensing, a barometer, gyroscope, and accelerometer. It records sleep data with detailed reports, tracks steps, distance, pace, and calories, and also covers HRV, VO2 max, resting heart rate, and readiness scores. The companion app extends this further with goal setting, fertility and ovulation tracking, water and weight logging, BMI tracking, live tracking, and coaching, all delivered ad-free. A 524 mAh battery supports up to six days of use and recharges wirelessly in around two hours.

Pros

Includes ECG technology alongside HRV tracking, VO2 max measurement, blood oxygenation monitoring, and a body temperature sensor, covering a wide range of health metrics from the wrist
Supports wireless charging and reaches a full charge in around 2 hours, reducing downtime between uses
The watch band is replaceable and the 40 g weight keeps the overall form light enough for all-day wear
Compatible with both iOS and Android, and pairs with external heart rate monitors and smart scales for a more complete health tracking setup
The companion app is free and ad-free, offering an extensive feature set including women's health tracking, live tracking, maps, coaching, and BMI logging
Always-on AMOLED display with a pixel density of 347 ppi provides a sharp, continuously visible screen experience

Cons

No multi-sport mode limits structured workout tracking for users who regularly switch between different sports
Lacks elevation tracking, which reduces usefulness for activities like hiking or cycling on varied terrain
No Wi-Fi connectivity, meaning the watch relies solely on Bluetooth for data transfer and communication
Operating temperature range starts at 5°C, which may restrict reliable use in cold outdoor environments
Does not support fall detection, a feature increasingly expected in health-focused wearables
Battery life of 6 days is relatively modest for a smartwatch with an always-on display and continuous health monitoring enabled

Who is this for?

The Huawei Watch D2 is well suited to health-conscious users who want detailed, continuous monitoring beyond basic fitness tracking. Its combination of ECG technology, HRV tracking, blood oxygenation monitoring, and body temperature sensing makes it a strong fit for individuals managing cardiovascular health or recovery. The inclusion of women's health features such as cycle tracking, ovulation prediction, and fertile window notifications also makes it a practical choice for users seeking a dedicated reproductive health tool. Those who prefer a lightweight, everyday wearable will appreciate the 40 g build and replaceable band, while users invested in a broader health ecosystem will benefit from compatibility with smart scales and external heart rate monitors alongside the ad-free companion app.

Who is this NOT for?

Users who prioritize outdoor and multi-sport activity will find this watch limiting, as it lacks elevation tracking and a dedicated multi-sport mode, making it a poor fit for hikers, trail runners, or athletes who regularly switch disciplines and need structured sport-specific data. The absence of Wi-Fi connectivity and an external memory slot will frustrate those who want standalone functionality or faster data syncing without relying entirely on Bluetooth. The operating temperature floor of 5°C also makes the watch unsuitable for cold-weather activities such as skiing or winter running. Additionally, users who depend on fall detection as a safety feature — such as older adults living independently — will not find that capability here.

Design:

screen size	1.82"
Display type	OLED/AMOLED
water resistance	Sweat resistant
Ingress Protection (IP) rating	IP68
Always-On Display	✓
pixel density	347 ppi
resolution	408 x 480 px
Watch band is replaceable	✓
has branded damage-resistant glass	✕
thickness	13.3 mm
weight	40 g
height	48 mm
width	38 mm
maximum operating temperature	40 °C
lowest potential operating temperature	5 °C
Has a display	✓
has a touch screen	✓
Has sapphire glass display	✕
volume	24.2592 cm³
is designed for kids	✕
width of band	26.5 mm

The Huawei Watch D2 features a 1.82″ OLED/AMOLED touchscreen with a resolution of 408 x 480 px and a pixel density of 347 ppi, and it supports an always-on display mode. The case measures 48 mm tall, 38 mm wide, and 13.3 mm thick, with a total weight of 40 g and a volume of 24.2592 cm³. The watch band is 26.5 mm wide and can be replaced, offering some flexibility in how the device is worn. It carries an IP68 ingress protection rating, making it resistant to sweat and water exposure, though it does not feature sapphire glass or any branded damage-resistant glass. The device operates within a temperature range of 5 °C to 40 °C and is not intended for use by children.

Sensors:

Monitors blood oxygenation levels	✓
Has a heart rate monitor	✓
has GPS	✓
has an accelerometer	✓
Has a temperature sensor	✓
has a compass	✕
Has a barometer	✓
has a gyroscope	✓
Has a cadence sensor	✕
Monitors perspiration	✕

The Huawei Watch D2 comes equipped with a solid set of sensors for health and movement tracking, including a heart rate monitor, a pulse oximeter for blood oxygenation readings, and a body temperature sensor. Motion is handled by both an accelerometer and a gyroscope, while a barometer adds environmental pressure data to the mix. The watch also includes GPS for location tracking. It does not feature a compass, a cadence sensor, or a perspiration monitor.

Activity tracking:

Tracks your sleep	✓
Tracks distance	✓
Tracks steps taken	✓
Measures pace	✓
Provides sleep reports	✓
Detects activities automatically	✓
Has a route tracker	✓
Tracks elevation	✕
Has multi-sport mode	✕
Has exercise tagging	✓
Tracks calorie intake	✓
Designed for diving	✕
Designed for golf	✕

The Huawei Watch D2 covers a broad range of everyday activity tracking, recording steps, distance, pace, and calorie intake, while also offering automatic activity detection and exercise tagging for a more hands-off logging experience. It includes a route tracker for mapping movement and provides both sleep tracking and detailed sleep reports. Elevation tracking and multi-sport mode are not supported, and the watch is not designed for diving or golf.

Connectivity:

has a cellular module	✕
Is compatible with iOS	✓
Is compatible with Android	✓
Bluetooth version	5.2
supports Wi-Fi	✕
Wi-Fi version	Wi-Fi 4 (802.11n)
supports ANT+	✕
has NFC	✓
supports Galileo	✕

The Huawei Watch D2 connects to smartphones via Bluetooth 5.2 and is compatible with both iOS and Android devices. It also includes NFC support for contactless functionality. The watch does not have a cellular module, does not support Wi-Fi or ANT+, and does not include Galileo satellite navigation.

Battery:

battery life	6 days
battery power	524 mAh
charge time	2 hours
has wireless charging	✓
has a rechargeable battery	✓
Has a solar power battery	✕
has a removable battery	✕

The Huawei Watch D2 is powered by a rechargeable 524 mAh battery that delivers up to 6 days of use on a single charge. It supports wireless charging and reaches a full charge in approximately 2 hours. The battery is not removable, and the watch does not offer solar charging.

Features:

has HRV tracking	✓
measures VO2 max	✓
measures resting heart rate	✓
has fast/slow heart rate notifications	✓
shows readiness level	✓
Can be used to answer calls	✓
Locates your phone	✓
Has call control	✓
Has notifications	✓
Has ECG technology	✓
Has silent alarm	✓
Has vibrating alerts	✓
has fall detection	✕
Has a stopwatch	✓
Has smart alarm	✕
has voice commands	✓
Has a built-in camera remote control function	✓
warranty period	1 years
number of microphones	1
has a front camera	✓

The Huawei Watch D2 offers a wide range of health and convenience features, including ECG technology, HRV tracking, VO2 max measurement, resting heart rate monitoring, and fast/slow heart rate notifications, alongside a readiness and recovery indicator. On the communication side, it supports wrist notifications, call answering, call control, voice commands, and a phone-locating function, with a single built-in microphone handling audio input. The watch also includes a front camera, a camera remote shutter function, a stopwatch, a silent alarm, and vibrating alerts. Fall detection and smart alarm are not available. The device comes with a one-year warranty.

App & Software:

Provides activity reports	✓
Has inactivity alerts	✓
Counts how many calories you've burned	✓
Has goal setting	✓
Has achievements	✓
Free app	✓
Has exercise diary	✓
Ad-free	✓
Has coaching	✓
Has temperature tracking	✓
Has period notifications	✓
Supports routes	✓
Has voice feedback	✓
Has music playback	✓
Displays fertile window notifications	✓
Includes maps	✓
Predicts ovulation	✓
Predicts start date	✓
Supports widgets	✓
Can be personalised	✓
Has barcode scanner on app	✕
Tracks water intake	✓
Has weight tracking	✓
Has live tracking	✓
Tracks BMI	✓

The companion app for the Huawei Watch D2 is free to download and ad-free, with a personalised interface that supports widgets and covers an extensive range of health and fitness tools. It provides activity reports, an exercise diary, inactivity alerts, goal setting, achievements, coaching, and voice feedback, along with calorie burn tracking, water intake logging, weight tracking, BMI tracking, and temperature tracking. Route support and maps are included for location-based activities, as is live tracking. The app also handles women's health features, including period notifications, fertile window notifications, ovulation prediction, and cycle start date prediction. Music playback is supported, though a barcode scanner is not available.

Miscellaneous:

has a battery level indicator	✓
Has auto pause	✓
Has passcode	✓
Compatible with smart scales	✓
Compatible with external heart rate monitors	✓
Is compatible with Windows	✕
has an external memory slot	✕
Is compatible with Mac OS X	✕
has a socket for a 3.5 mm audio jack	✕

The Huawei Watch D2 includes a battery level indicator, auto pause, and passcode protection for added convenience and security. It is compatible with smart scales and external heart rate monitors, allowing it to integrate with a broader set of health tracking hardware. The watch does not have an external memory slot or a 3.5 mm audio jack, and it is not compatible with Windows or Mac OS X.

Final Verdict

The Huawei Watch D2 positions itself as a health-focused smartwatch with a genuinely broad sensor suite, anchored by its ECG technology and comprehensive biometric monitoring that spans HRV, blood oxygenation, body temperature, and cardiovascular readiness. Paired with an ad-free companion app that covers everything from women's health tracking to BMI and live activity monitoring, it delivers a coherent and detailed wellness experience within a lightweight, everyday-friendly form factor. Where it falls short — notably the absence of multi-sport mode, elevation tracking, and Wi-Fi — reflects a product designed primarily around health monitoring rather than performance sport. For users whose priority is continuous, in-depth health tracking over athletic versatility, the Watch D2 represents a well-rounded and capable wearable.