Screen
Screen diagonal: 4.88 cm (1.92")
Display technology: AMOLED
Brightness: 3000 cd/m²
Pixel density: 328 ppi
Display type: Digital
Screen resolution: 408 x 480 pixels
Function: Touch screen
design
Strap material: leather, rubber
Shape: Rectangular
Wrist size: 130 - 210 mm
Market positioning: Smartwatch
Watch case color: Gold
Watch case material: aluminum, polymer
Bracelet color: Sand
International protection level (IP code): IP68
Services
Supported mobile operating systems: Android, iOS
RAM capacity: 64 MB
Flash memory: 64 GB
Feature: Built-in microphone
Feature: Built-in speakers
Features
Feature: Heart rate monitor
Feature: Contact heart rate sensors
Heart rate sensor type: Optical
Feature: Blood pressure monitor
Feature: Blood oxygen sensor
Feature: Accelerometer
Feature: Gyroscope
Feature: Magnetometer
Feature: Sleep quality
Feature: Irregular rhythm reports
Function: SMS (Short Message Service)
Feature: Vibration motor
Personal Information Management (PIM): Menstrual Cycle
Feature: Ambient light sensor
Feature: Calendar notifications
Function: SMS notifications
Feature: Electronic compass
Feature: Skin temperature sensor
Function: Stress monitoring function
Number of gyroscope axes: 9
Feature: Call notifications
Feature: Barometer
network
Function: GPS
Connections and interfaces
Function: Bluetooth
Function: Bluetooth Low Energy (BLE)
Function: Near Field Communication (NFC)
Bluetooth version: 6.0
energy
Battery type: Integrated battery
Battery life: 6 days
Function: Wireless charging
Charging voltage: 5–10 V
Charging time: 1.08 hours
Working conditions
Operating temperature: 5–40°C
Storage temperature range: -20 - 55 °C
Battery/rechargeable battery
Battery technology: Lithium-ion (Li-ion)
Battery/battery capacity: 540 mAh
Weight and dimensions
Width: 388 mm
Depth: 465 mm
Thickness: 1.14 cm
Weight: 40g
Band width: 2.55 cm
Packaging information
Packaging width: 120 mm
Packaging depth: 90 mm
Packaging height: 120 mm
Package weight: 400g
Packaging type: Box
Scope of delivery
Function: Charger
Feature: Warranty card
Feature: Chest strap
Feature: Quick Installation Guide


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It is important to know

Choosing a smartwatch like the Huawei Watch D3 (River-B19) requires careful consideration of how you will use the watch and which features are most important to you in your daily life or sports. Key considerations when buying include phone connectivity, expected functionality, and whether the size and battery life will suit your habits. Before buying, pay particular attention to the balance between the range of features and ease of use in practice.

• The range of features may be extensive, but realistically you will only use a few of them often – before buying, consider whether you need advanced health metrics or mainly basic features like notifications, activity tracking, and time display.
• Battery life is significantly reduced with more intensive use, such as continuous health monitoring or active use of GPS functions - in practice this may mean more frequent charging than stated under ideal conditions.
• A watch is most useful when it's designed for your phone - check that it's fully compatible with your operating system (Android, iOS), as some advanced features only work with certain phones.
• A larger screen and additional features such as blood pressure or ECG measurement improve the user experience, but can also mean higher power consumption and a slightly larger watch, which is not always ideal for smaller wrists or nighttime wear.

Source of editorial recommendations: ENAA guides and team experience.

In practice

🟢 Everyday use and smart notifications

🟢 Very convenient - Huawei Watch D3 offers constant notifications, activity tracking, and a clock, which suits the needs of everyday users who want to stay connected without constantly reaching for their phone.

🟢 Sports and outdoor recreational activities

🟢 Very convenient – Built-in sports functions allow for effective tracking of running, cycling or walking; route recording with standalone GPS is also supported (if confirmed in the specifications).

🟡 Autonomy and health monitoring

🟡 Suitable with limitations – Advanced features such as continuous heart rate or blood pressure monitoring can significantly affect battery life, so expect to use multiple charges if you use these features frequently.

🟢 Connectivity with modern Android phones

🟢 Very suitable – The watch is designed for good connectivity with Android-enabled phones, allowing full use of most features.

🟡 Use with iPhone devices

🟡 Compatible with limitations – Some more advanced features may not be available or limited when using the watch with an iPhone, so check compatibility based on your personal needs.

Answers to frequently asked questions

Can I use the watch with every type of smartphone?

The watch is compatible with most Android devices, but certain features may be limited when used with iOS (iPhone). We recommend checking compatibility details before purchasing.

How often do I need to charge my watch with normal use?

Actual battery life depends on activity - intensive health monitoring or frequent use of GPS functions will require more frequent charging than for basic use.

Can the watch record sports activities independently without a phone?

For many basic sports and route recording (if it has its own GPS), you can use the watch without your phone during outdoor activities.

Can I make calls with my watch?

Calling is possible if the watch is connected to a phone via Bluetooth or has a standalone mobile connection function (depending on model and version).

Description updated: October 2026

Read also

If you are still deciding, the following content may also be helpful.

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Smart watches for sports

Why buy from ENAA?

• The fastest in Slovenia: more than 95% of orders are delivered the next business day.
• The descriptions on ENAA are neutral and transparent, the purchasing decision is always up to you.