Blackview Oscal C20 vs realme C51
Blackview
Oscal C20
realme
C51
At a glance
- Brand
- Blackview
- realme
- Release date
- September 2021, 4 years 8 months ago
- July 2023, 2 years 10 months ago
- AnTuTu
- 23.006 Antutu v8 Overall performance better than 49% of devices
- 220.000 Antutu v9 Overall performance better than 56% of devices
Display
- Size
- 6.09"
- 6.74"
- Resolution
- 720 x 1560 px HD+
- 720 x 1600 px HD+
- Type
- LCD IPS
- LCD IPS
- Density
- 282 ppi Medium Density
- 262 ppi Medium Density
- Aspect ratio
- 19.5:9
- 20:9
- Features
- Water Drop Notch, LED Notifications, Capacitive, Multi-touch
- Water Drop Notch, Refresh rate 90 Hz, Touch sampling rate 180 Hz, 560 cd/m² maximum brightness, 1500:1 contrast ratio, Scratch resistant, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless
Performance
- Chipset
- Spreadtrum SC7731E (S513)
- Unisoc Tiger T612 / T7225
- CPU
- 4x Cortex A7 1.3 GHz
- 2 x ARM Cortex A75 1.8Ghz + 6 x ARM Cortex A55 1.8Ghz
- CPU type
- Quad-Core
- Octa-Core
- Process
- 28 nm
- 12 nm
- Frequency
- 1.3 GHz
- 1.8 GHz
- GPU
- ARM Mali-400 MP1
- Mali-G57 MP1
- RAM
- 1 GB
- 4 GB
- 64-bit
- No
- Yes
- RAM type
- —
- LPDDR4X RAM
Rear camera
- Resolution
- 5 Mpx
- 50 Mpx
- Aperture
- ƒ/ 2.0
- ƒ/ 1.8
- Sensor
- GalaxyCore GC5035
- Samsung S5KJN1
- Pixel size
- 1.12 µm
- 0.64 µm
- Sensor size
- 1/5"
- 1/2.76"
- Flash
- LED
- LED
- Optical stabilization
- No
- No
- Slow motion
- No, 30 fps
- No, 30 fps
- Features
- Autofocus, Touch focus, Geotagging, Panorama, HDR, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, Front Flash
- Digital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Phase detection autofocus (PDAF), Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer
Front camera
- Resolution
- 2 Mpx
- 5 Mpx
- Aperture
- ƒ/ 2.2
- ƒ/ 2.2
- Sensor
- GalaxyCore GC02M2
- Samsung S5K5E9
- Pixel size
- 1.75 µm
- 1.12 µm
Battery
- Capacity
- 3380 mAh
- 5000 mAh
- Type
- Li-Polymer
- Li-Polymer
- Fast charge
- Yes , 5.0W
- Yes , 33.0W
- Features
- Removable
- Non-removable
Storage
- Capacity
- 32 GB
- 64 GB
- SD slot
- Yes , Independent SD slot
- Yes , Independent SD slot
- Type
- —
- eMMC 5.1 Storage
Body
- Dimensions
- 73.5 mm 155.4 mm 9.5 mm Print 3D Model
- 76.7 mm 167.2 mm 8.0 mm Print 3D Model
- Weight
- 156 g
- 186 g
- Materials
- Plastic
- Plastic
- Colors
- Black Blue Red Purple
- Black Green
- Usable surface
- 79 %
- 84 %
Software
- Operating system
- Android 11 Red Velvet Cake Android 11 Go edition
- Android 13 Tiramisu Android 13
- Google services
- With Google Mobile Services
- With Google Mobile Services
- Updates
- —
- OS updates: 1 years, Security updates: 2 years
Connectivity
- SIM
- Dual SIM Dual Standby (Nano SIM + Nano SIM)
- Dual SIM Dual Standby (Nano SIM + Nano SIM)
- Bluetooth
- Bluetooth 4.2 LELow energy consumption
- Bluetooth 5.0 LELow energy consumption
- Bluetooth profiles
- A2DP (Advanced Audio Distribution Profile), LE (Low Energy)
- A2DP (Advanced Audio Distribution Profile), LE (Low Energy), LDAC, SBC, AAC
- Wi-Fi
- 802.11b , 802.11g , 802.11n
- 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac
- Wi-Fi features
- Wi-Fi Hotspot
- Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMO
- USB features
- Charging, OTG
- Charging, OTG
- Navigation
- GPS, A-GPS, GLONASS, Beidou
- GPS, A-GPS, GLONASS, Galileo
- USB
- —
- USB Type-C
Networks
- 3G
- B1 (2100), B8 (900)
- B1 (2100), B5 (850), B8 (900)
- 2G
- B2 (1900), B3 (1800), B5 (850), B8 (900)
- B2 (1900), B3 (1800), B5 (850), B8 (900)
- 4G LTE
- —
- B1 (2100), B3 (1800), B5 (850), B8 (900), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500)
Sensors & security
- Fingerprint
- No
- Yes, on the side
- Accelerometer
- Yes
- Yes
- Proximity
- Yes
- Yes
- Light sensor
- Yes
- Yes
- Cooling system
- No
- No
- Audio
- —
- Noise cancellation microphone
