OnePlus Watch4 46mm Black

OnePlus Watch 4

Performance and energy efficiency are handled through a dual-processor setup. The Qualcomm Snapdragon W5 Gen 1 platform takes care of demanding tasks, while a BES2700 co-processor is dedicated to background operations. Thanks to this arrangement, the watch can switch between the Wear OS 5.0 operating system and a low-power RTOS environment. Pairing is required with Android 9.0 or later smartphones that include Google Mobile Services (GMS); iOS and Android Go editions are not compatible.

1.5-inch LTPO AMOLED screen

The 1.5-inch LTPO AMOLED panel features dynamic refresh technology, which lowers energy use when the Always-On Display mode is active. It offers a resolution of 466 x 466 pixels (326 dpi) and reaches a peak brightness of 3000 nits, so it remains readable even in bright sunlight. A 2.5D sapphire glass coating guards the surface against scratches and impacts.

Durable construction

The 47-millimetre case is crafted from surgical-grade stainless steel with a matte black PVD finish. A fluoroelastomer strap with a steel buckle and a 22 mm anchor system is included. For toughness, it carries IP69 certification (resistant to high-pressure water jets and temperature), 5ATM water resistance and the MIL-STD-810H military standard.

Battery life of up to 100 hours

Equipped with a 646 mAh battery, it delivers up to 100 hours of use in smart mode under Wear OS. Under heavy use (biometric sensors and active GPS), runtime drops to between 48 and 60 hours, whereas saver mode (RTOS) stretches it to 15 days. VOOC 10W fast charging brings the battery to 100% in 55 minutes.

Optical heart rate sensor

The sensor suite comprises an 8-channel optical heart rate monitor (HRV), blood oxygen measurement (SpO2), a skin temperature sensor and electrocardiogram (ECG) hardware. Together, these elements allow advanced fatigue and recovery data to be recorded.

GPS

For location tracking, it includes a dual-frequency Multi-GNSS L1+L5 system (Beidou, Galileo, GLONASS and QZSS), which enhances precision in built-up urban environments. Connectivity also features Bluetooth 5.3, dual-band Wi-Fi and an NFC chip for payments through Google Wallet. This model lacks eSIM support; data is transferred via the paired smartphone.

• Technical specifications Design Dimensions: 47.0 x 46.6 x 12.1 mm
• Case size: 46 mm
• Weight: 49 g (case) - 80 g (with strap)
• Material: Surgical grade stainless steel
• Strap: Fluoroelastomer (22 mm, interchangeable)
• Colour: Black (matt PVD finish)
• Protection: IP69 - 5ATM - MIL-STD-810H
• Display Size: 1.5"
• Type: LTPO AMOLED
• Resolution: 466 x 466 pixels
• Density: 326 dpi
• Maximum brightness: 3000 nits (peak)
• Protection: 2.5D sapphire glass
• Power and Hardware Processor: Qualcomm Snapdragon W5 Gen 1
• Co-processor: BES2700
• RAM: 2GB
• Storage: 32 GB eMMC
• Sensors and Health Health Sensors: Heart rate (8 channels) - SpO2 - Temperature - ECG
• Motion Sensors: Accelerometer - Gyroscope - Magnetometer - Barometer - Barometer
• Connectivity Bluetooth: Bluetooth 5.3
• Wi-Fi: 2.4 GHz / 5 GHz
• GPS: Dual frequency L1 + L5 (GPS - GLONASS - Galileo - Beidou - QZSS)
• NFC: Yes (Google Wallet)
• Battery Capacity: 646 mAh
• Battery life: Up to 100 h (smart mode) - 48 - 60 h (heavy use) - Up to 15 days (economy mode)
• Fast charging: 10W VOOC (100% in 55 min)
• Software System: Wear OS 5.0
• Compatibility: Android 9.0+ - Google Services (GMS)