Blackview OSCAL TANK 1 vs Cubot J20

At a glance

Brand: Blackview; Cubot
Release date: September 2025, 8 months ago; July 2023, 2 years 10 months ago
AnTuTu: 601.430 Antutu v10 Overall performance better than 76% of devices; 46.800 Antutu v9 Overall performance better than 49% of devices

Size: 6.78"; 4"
Resolution: 1080 x 2460 px FHD+; 480 x 854 px LowRes
Type: LCD IPS; LCD
Density: 396 ppi High Density; 245 ppi Medium Density
Aspect ratio: 21:9; 16:9
Features: Hole-punch Notch, SGS Certified, TÜV Low Blue Light, Refresh rate 120 Hz, Peak brightness - 650 cd/m², Corning Gorilla Glass 5, Capacitive, Multi-touch; Without Notch, Capacitive, Multi-touch

Chipset: MediaTek Dimensity 7050 (MT6877); MediaTek MT6739WA
CPU: 2x2.6 GHz ARM Cortex A78+6x 2.0 GHz ARM Cortex A55; 4x Cortex A53 1.3 GHz
CPU type: Octa-Core; Quad-Core
Process: 6 nm; 28 nm
Frequency: 2.6 GHz; 1.3 GHz
GPU: Mali-G68 MC4; PowerVR GE8100
RAM: 12 GB; 2 GB
RAM type: RAM LPDDR5; —
64-bit: Yes; Yes

Resolution: 64 Mpx; 5 Mpx
Aperture: ƒ/ 1.88; Unknow
Flash: Triple LED; LED
Optical stabilization: No; No
Slow motion: Yes, 120 fps; No, 30 fps
Features: Digital zoom, Dual camera, Autofocus, Touch focus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, Night Vision; Autofocus, Touch focus, Geotagging, HDR, Face detection, Self-timer

Capacity: 256 GB; 16 GB
Type: UFS Storage 3.1; —
SD slot: Yes , Slot for SD or second SIM card; Yes , Slot for SD or second SIM card

Dimensions: 83.0 mm 184.0 mm 29.5 mm Print 3D Model; 65.0 mm 138.0 mm 10.8 mm Print 3D Model
Weight: 640 g; 143 g
Materials: TPU , Rugged Smartphone, Aluminium alloy; Plastic
Colors: Black Orange; Black Green
Water/dust resistance: IP68, IP69 , MIL-STD-810H , UL94 HB; —
Drop resistance: Class A B C D E 270 drops without defects; —
Repairability: Class A B C D E; —
Usable surface: 71 %; 49 %

Operating system: Android 15 Android 15; Android 12 Snow Cone Android 12 Go edition
Google services: With Google Mobile Services; With Google Mobile Services

SIM: Dual SIM Dual Standby (Nano SIM + Nano SIM); Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth: Bluetooth 5.2; Bluetooth 4.2
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile); A2DP (Advanced Audio Distribution Profile)
Wi-Fi: 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax); 802.11b , 802.11g , 802.11n
Wi-Fi features: Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display; Wi-Fi Hotspot
USB: USB Type-C; —
USB features: Charging, OTG; Charging, OTG
Navigation: GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, QZSS (L1 + L5); GPS, A-GPS

5G: n1 (2100), n5 (850), n7 (2600), n8 (900), n20 (800), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n77 (3700), n78 (3500); —
4G LTE: B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B13 (700), B17 (700), B18 (800), B19 (800), B20 (800), B25 (1900+), B26 (850), B28b (700), B28a (700), B30 (2300), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100); B1 (2100), B3 (1800), B5 (850), B7 (2600), B8 (900), B19 (800), B20 (800), B40 (TDD 2300)
3G: B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800); B1 (2100), B8 (900)
2G: CDMA BC0 (800), CDMA BC1 (1900), CDMA BC10 (800 Secondary), B2 (1900), B3 (1800), B5 (850), B8 (900); B2 (1900), B3 (1800), B5 (850), B8 (900)