Selling both smartwatch, Oneplus and Samsung. No longer using smartwatch. Both watch are still in good condition, rarely use. Both can use for Card payment (NFC)..
Oneplus Watch 3 (47mm)
Display & Build
• Screen (47mm): 1.5-inch LTPO AMOLED (466 × 466 px), sapphire crystal glass face, up to 2,200 nits peak brightness.
• Screen (43mm): 1.32-inch OLED display (2.5D cover glass), up to 1,000 nits peak brightness.
• Materials: Titanium alloy or stainless steel bezel/case with a plastic back; compatible with standard 22mm straps.
• Durability: 5ATM water resistance, IP68 dust and water resistance, and MIL-STD-810H military-grade certification.
Performance & Storage
• Chipset: Dual-engine architecture featuring the Qualcomm Snapdragon W5 Gen 1 + BES2800BP MCU.
• Memory & Storage: 2 GB RAM and 32 GB internal storage.
• Operating System: Wear OS by Google paired with RTOS.
Battery & Charging
• Battery (47mm): 631 mAh — up to 5 days in Smart Mode, 120–160 hours / up to 16 days in Power Saver Mode, and 3 days with heavy use.
• Battery (43mm): 354 mAh — up to 60 hours in Smart Mode and up to 7 days in Power Saver Mode.
• Charging: Fast wireless charging (VOOC Flash Charging) — roughly 10 minutes of charge provides a full day of power.
Sensors & Health Tracking
• Sensors: Optical heart rate sensor, optical pulse oximeter (SpO2), wrist temperature sensor, ECG, barometer, accelerometer, gyroscope, geomagnetic, and ambient light sensors.
• Fitness: Over 100 sports modes (including 11 professional modes like running, skiing, tennis, and swimming) plus a 60-second Health Check-In.
• GPS: Dual-frequency L1 + L5 GPS, GLONASS, Galileo, Beidou, and QZSS.
Connectivity
• Wireless: Bluetooth 5.2, Wi-Fi (2.4GHz / 5GHz), and NFC (Google Wallet support).
• Calls: Built-in speaker and microphone for Bluetooth calling.
• Compatibility: Requires Android 9.0 or higher (iOS and Android Go editions are not supported).
Galaxy Watch 6 Classic (43mm)
Display & Build
• Sizes: Available in 43mm (1.3-inch, 432 x 432 pixels) and 47mm (1.5-inch, 480 x 480 pixels)
• Display Type: Super AMOLED with Always-On Display, protected by Sapphire Crystal glass
• Bezel: Rotating stainless steel bezel
• Durability: IP68 dust and water resistant, 5ATM (up to 50 meters), and MIL-STD-810H compliant
• Dimensions & Weight:
• 43mm: 42.5 x 42.5 x 10.9 mm, 52 g
• 47mm: 46.5 x 46.5 x 10.9 mm, 59 g
Performance & Hardware
• Chipset: Exynos W930 (5 nm) dual-core 1.4 GHz Cortex-A55 with Mali-G68 GPU
• RAM & Storage: 2 GB RAM and 16 GB internal storage
• Operating System: Wear OS powered by Samsung (Wear OS 4 / One UI Watch 5)
Battery & Charging
• Battery Capacity: 300 mAh (43mm model) / 425 mAh (47mm model)
• Charging: Wireless Qi-compatible fast charging
Connectivity & Sensors
• Connectivity: Bluetooth 5.3, Wi-Fi (dual-band), NFC, and GPS
• Cellular Options: Bluetooth/Wi-Fi only or optional LTE with eSIM
• Health & Fitness Sensors: Optical heart rate sensor, electrical heart signal (ECG), bioelectrical impedance analysis (BIA) for body composition, continuous SpO2/blood pressure tracking, skin temperature sensor (thermometer), accelerometer, gyroscope, barometer, and compass