Cubot J20 vs nubia-red-magic nubia RedMagic 10 Air

At a glance

Brand: Cubot; Nubia Red Magic
Release date: July 2023, 2 years 11 months ago; April 2025, 1 years 2 months ago
AnTuTu: 46.800 Antutu v9 Overall performance better than 49% of devices; 1.898.452 Antutu v10 Overall performance better than 94% of devices

Size: 4"; 6.8"
Resolution: 480 x 854 px LowRes; 1216 x 2668 px QHD
Type: LCD; AMOLED
Density: 245 ppi Medium Density; 431 ppi Very high density
Aspect ratio: 16:9; 20:9
Features: Without Notch, Capacitive, Multi-touch; Without Notch, SGS Certified, Delta-E, 2600 Hz PWM, Refresh rate 144 Hz, Touch sampling rate 960 Hz, Peak brightness - 2000 cd/m², Max brightness HBM - 1000 cd/m², DCI-P3, 10 Bits panel, Scratch resistant, 3D curved glass screen, Capacitive, Multi-touch, Frameless

Chipset: MediaTek MT6739WA; Qualcomm Snapdragon 8 Gen3
CPU: 4x Cortex A53 1.3 GHz; 1x3.3GHz Cortex X4 + 3x3.2 GHz Cortex A720 + 2x3.0 GHz Cortex A720 + 2x2.3 GHz Cortex A520
CPU type: Quad-Core; Octa-Core
Process: 28 nm; 4 nm
Frequency: 1.3 GHz; 3.3 GHz
GPU: PowerVR GE8100; Adreno 750
RAM: 2 GB; 12 GB
64-bit: Yes; Yes
RAM type: —; RAM LPDDR5X

Resolution: 5 Mpx; 50 Mpx
Aperture: Unknow; ƒ/ 1.88
Flash: LED; Dual LED
Optical stabilization: No; Yes
Slow motion: No, 30 fps; Yes, 240 fps
Features: Autofocus, Touch focus, Geotagging, HDR, Face detection, Self-timer; 4K Video, 8K Video, Digital zoom, Dual camera, Digital image stabilization, Optical Stabilization (OIS), Autofocus, Touch focus, Continuous autofocus, Manual focus, Laser autofocus (LAF), Under display camera, Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, RAW, Night Mode
Sensor: —; Omnivision OV50E
Pixel size: —; 1.00 µm
Sensor size: —; 1/1.55"

Dimensions: 65.0 mm 138.0 mm 10.8 mm Print 3D Model; 76.6 mm 164.3 mm 7.9 mm Print 3D Model
Weight: 143 g; 205 g
Materials: Plastic; Aluminium alloy , Glass
Colors: Black Green; Black White Orange
Usable surface: 49 %; 89 %
Water/dust resistance: —; IP54
Drop resistance: —; Class A B C D E 45 drops without defects
Repairability: —; Class A B C D E

Operating system: Android 12 Snow Cone Android 12 Go edition; Android 15 Android 15
Google services: With Google Mobile Services; With Google Mobile Services
Updates: —; OS updates: 3 years, Security updates: 3 years

SIM: Dual SIM Dual Standby (Nano SIM + Nano SIM); Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth: Bluetooth 4.2; Bluetooth 5.4 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile); A2DP (Advanced Audio Distribution Profile), LE (Low Energy), APT-x, LDAC, SBC, AAC
Wi-Fi: 802.11b , 802.11g , 802.11n; 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax) , WiFi 6E , WiFi 7 (802.11be)
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; A-GPS, GLONASS, Beidou, QZSS, GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5), GPS (L1+L2+L5)
USB: —; USB Type-C

4G LTE: B1 (2100), B3 (1800), B5 (850), B7 (2600), B8 (900), B19 (800), B20 (800), B40 (TDD 2300); B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B17 (700), B18 (800), B19 (800), B20 (800), B26 (850), B28b (700), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B66 (1700/2100)
3G: B1 (2100), B8 (900); B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800)
2G: B2 (1900), B3 (1800), B5 (850), B8 (900); CDMA BC0 (800), B2 (1900), B3 (1800), B5 (850), B8 (900)
5G: —; n1 (2100), n2 (1900 PCS), n3 (1800), n5 (850), n7 (2600), n8 (900), n20 (800), n26 (850), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n66 (1700), n77 (3700), n78 (3500)