Product
OnePlus 3
OnePlus 3
Samsung Galaxy M55s
Samsung Galaxy M55s
Battery
Charging 20W wired 45W wired
Type Li-Ion 3000 mAh, non-removable 5000 mAh
Body
Build Glass front (Gorilla Glass 4), aluminum back, aluminum frame -
Dimensions 152.7 x 74.7 x 7.4 mm (6.01 x 2.94 x 0.29 in) 163.9 x 76.5 x 7.8 mm (6.45 x 3.01 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 158 g (5.57 oz) 180 g (6.35 oz)
Comms
Bluetooth 4.2, A2DP, LE, aptX HD 5.2, A2DP, LE
NFC Yes Yes
Positioning GPS, GLONASS, BDS GPS, GALILEO, GLONASS, BDS, QZSS
Radio No No
USB USB Type-C 2.0 USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, DLNA Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 4 -
Resolution 1080 x 1920 pixels, 16:9 ratio (~401 ppi density) 1080 x 2400 pixels, 20:9 ratio (~393 ppi density)
Size 5.5 inches, 83.4 cm2 (~73.1% screen-to-body ratio) 6.7 inches, 108.4 cm2 (~86.4% screen-to-body ratio)
Type Optic AMOLED Super AMOLED+, 120Hz, 1000 nits (HBM)
Features
Sensors Fingerprint (front-mounted), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2016, June. Released 2016, June 2024, September 24
Status Discontinued Available. Released 2024, September 26
Main Camera
Features LED flash, panorama, HDR LED flash, panorama, HDR
Single 16 MP, f/2.0, 1/2.8", 1.12µm, PDAF, OIS -
Triple - 50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.2, 123˚ (ultrawide) 2 MP, f/2.4, (macro)
Video 4K@30fps, 1080p@30/60fps, 720p@120fps, Auto HDR 4K@30fps, 1080p@30/60fps, gyro-EIS, OIS
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 64GB 6GB RAM 128GB 8GB RAM, 256GB 8GB RAM
Misc
Colors Graphite, soft gold Thunder Black, Coral Green
Models A3003, A3000, SM-A3000 SM-M558B, SM-M558B/DS
SAR - 0.93 W/kg (head)    
SAR EU 0.39 W/kg (head)     0.32 W/kg (body)     -
Network
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 7, 8, 20, 38, 40 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 38, 40, 41, 66
5G bands - 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps HSPA, LTE, 5G
Technology GSM / HSPA / LTE GSM / HSPA / LTE / 5G
Our Tests
Audio quality Noise -93.4dB / Crosstalk -94.4dB -
Battery (old) Endurance rating 66h -
Camera Photo / Video -
Display Contrast ratio: Infinite (nominal), 4.424(sunlight) -
Loudspeaker Voice 62dB / Noise 71dB / Ring 77dB -
Performance Basemark OS II 2.0: 2365Basemark X: 32715 -
Platform
Chipset Qualcomm MSM8996 Snapdragon 820 (14 nm) Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm)
CPU Quad-core (2x2.15 GHz Kryo & 2x1.6 GHz Kryo) Octa-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510)
GPU Adreno 530 Adreno 644
OS Android 6.0.1 (Marshmallow), upgradable to Android 9.0 (Pie) Android 14, up to 4 major Android upgrades, One UI 6.1
Selfie camera
Single 8 MP, f/2.0, 1/3.2", 1.4µm 50 MP, f/2.4, (wide)
Video 4K@30fps, 1080p@30/60fps
Sound
3.5mm jack Yes No
Loudspeaker Yes Yes, with stereo speakers