SPECIFICATIONS

Understanding the full specifications of the Redmi Watch 3 Active is essential for users who want complete clarity on its performance, hardware capabilities, and compatibility. This smartwatch combines practicality, durability, and efficient software integration to deliver an excellent everyday wearable experience. Below is a detailed breakdown of its technical specifications and what each component means for real-world usage.

1. Display Specifications

• Screen Size: 1.83 inches
• Display Type: TFT-LCD panel
• Resolution: 240 × 280 pixels
• Brightness: Up to 450 nits
• Touchscreen: Capacitive multi-touch
• Refresh Smoothness: Optimized for responsive swiping and scrolling

The 1.83-inch TFT display offers ample viewing space for fitness data, notifications, and app navigation. With 450 nits of peak brightness, the screen remains readable outdoors, even under direct sunlight. The TFT panel balances power efficiency with visual clarity, making it suitable for users who prioritize longevity over AMOLED-level contrast.

2. Body & Build

• Frame Material: Durable polymer material
• Strap Material: TPU (thermoplastic polyurethane)
• Weight: Approximately 41g (with strap)
• Dimensions: 46.9 × 38.8 × 10.9 mm
• Water Resistance Rating: 5ATM
• Dust Resistance: Strong structural sealing

The polymer frame ensures durability without adding unnecessary weight, making the watch comfortable for extended daily wear. The TPU strap is skin-friendly and keeps the weight minimal. Its 5ATM certification means the watch is safe for swimming and exposure to splashes, making it ideal for active lifestyles and outdoor use.

3. Sensors & Health Technology

The Redmi Watch 3 Active includes a series of reliable sensors designed to monitor your health accurately:

• Optical Heart Rate Sensor
• SpO₂ Blood Oxygen Sensor
• Accelerometer (3-axis)
• Sleep Monitoring Sensor Cluster

Health Monitoring Features Enabled by These Sensors

• Continuous heart rate monitoring
• SpO₂ estimation
• Sleep tracking (light, deep, and REM cycles)
• Stress estimation
• Step counting & movement tracking
• Calorie burn estimation

These sensors work together to provide a comprehensive overview of your wellbeing via the Mi Fitness app. The technology ensures that all data collected is accurate enough for daily fitness and health awareness.

4. Battery & Power Management

• Battery Capacity: 289mAh (typical)
• Battery Life:
• Up to 12 days (typical usage)
• 8 days (heavy usage with frequent Bluetooth calls)
• Charging Method: Magnetic charging dock
• Charging Time: Approximately 2 hours
• Power Saving Modes: Battery Saver, Auto Screen-Off

The 289mAh battery is optimized through efficient software and low-power display management. Whether used casually or intensively, the watch provides reliable longevity that reduces the need for frequent charging. The magnetic dock ensures quick alignment and hassle-free charging.

5. Connectivity & Compatibility

• Bluetooth Version: Bluetooth 5.3
• Supported Apps: Mi Fitness (Xiaomi Wear)
• Compatibility:
• Android 6.0 or later
• iOS 12.0 or later

The inclusion of Bluetooth 5.3 brings improved connection stability, lower power consumption, and faster data synchronization. Notifications appear more reliably, and Bluetooth calling is smoother. Compatibility with both Android and iOS devices ensures that the watch serves a broad user base.

6. Fitness & Activity Features

• Workout Modes: Over 100 modes including:
• Running
• Cycling
• Swimming
• HIIT
• Yoga
• Strength training
• Auto Workout Detection: Not available
• Swimming Mode: YES — supported by 5ATM rating
• Fitness Algorithms: Custom motion analysis through accelerometer data

Each workout mode provides specialized metrics such as distance, calorie burn, heart rate zones, and duration. Users can view detailed histories in the Mi Fitness app.

7. Smart Functionality

• Bluetooth Calling: Supported
• Microphone: Built-in
• Speaker: Built-in, optimized for call clarity
• Notifications: Calls, messages, alarms, apps
• Apps Available On-Device:
• Weather
• Music Control
• Stopwatch
• Timer
• Flashlight
• Alarm
• Find My Phone
• Sedentary Alerts
• Watch Face Options: 200+ customizable designs

The smart features make the watch more than a fitness tracker—it becomes a personal assistant on your wrist, enhancing daily convenience.

8. Memory & System Performance

• Operating System: Lightweight real-time OS
• RAM & Storage: Optimized for smooth navigation and watch face storage
• App Responsiveness: Quick, lag-free navigation

The system is optimized to maintain smooth performance without requiring large RAM or storage, ensuring efficient function while conserving battery.

9. Packaging & Included Accessories

• In the Box:
• Redmi Watch 3 Active
• Magnetic charging cable
• Quick Start Guide
• Safety Warranty Notice

10. Color Options

• Available Colors:
• Black
• Silver
• Pink (availability varies by region)

The Redmi Watch 3 Active’s specifications highlight a device built for practical users who value health tracking, long battery life, and stylish design, all at a budget-friendly cost. Its combination of modern display technology, robust sensors, and smart features makes it an excellent package for both beginners and experienced smartwatch users.