Cubot X90 vs Poco C81x

At a glance

Brand: Cubot; POCO
Release date: May 2024, 2 years 1 months ago; April 2026, 2 months ago
AnTuTu: 416.900 Antutu v10 Overall performance better than 68% of devices; 308.681 Antutu v10 Overall performance better than 61% of devices

Size: 6.67"; 6.88"
Resolution: 1080 x 2400 px FHD+; 720 x 1640 px HD+
Type: AMOLED; LCD IPS
Density: 395 ppi High Density; 260 ppi Medium Density
Aspect ratio: 20:9; 21:9
Features: Hole-punch Notch, Refresh rate 120 Hz, Peak brightness - 1500 cd/m², DCI-P3, 10 Bits panel, 2.5D curved glass screen, Dual Edge display, Capacitive, Multi-touch, Frameless, In-cell; Water Drop Notch, Refresh rate 120 Hz, Touch sampling rate 240 Hz, Brightnes 450 cd/m² (typ), 1500:1 contrast ratio, TÜV Rheinland Eye Comfort Certification, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless, In-cell

Chipset: MediaTek Helio G99 (MT6789); Unisoc Tiger T615 (T7250)
CPU: 2x Cortex A76 2.2 GHz + 6x Cortex A55 2.0 GHz; 2 x ARM Cortex A75 1.8Ghz + 6 x ARM Cortex A55 1.6Ghz
CPU type: Octa-Core; Octa-Core
Process: 6 nm; 12 nm
Frequency: 2.2 GHz; 1.8 GHz
GPU: Mali-G57 MC2; Mali-G57 MP1
RAM: 16 GB; 3 GB
64-bit: Yes; Yes
RAM type: —; LPDDR4X RAM

Resolution: 100 Mpx; 13 Mpx
Aperture: ƒ/ 1.9; ƒ/ 2.0
Sensor: Omnivision OVA0B40; —
Pixel size: 0.61 µm; —
Sensor size: 1/1.8"; —
Flash: LED; LED
Optical stabilization: No; No
Slow motion: No, 30 fps; No, 30 fps
Features: Triple camera, Autofocus, Touch focus, Phase detection autofocus (PDAF), Geotagging, Panorama, HDR, Scene mode, Self-timer; Digital zoom, Dual camera, Autofocus, Touch focus, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer

Dimensions: 74.0 mm 162.2 mm 9.3 mm Print 3D Model; 77.8 mm 171.8 mm 8.3 mm Print 3D Model
Weight: 207 g; 193 g
Materials: Plastic; Plastic
Colors: Black Green; Black Cyan
Usable surface: 89 %; 84 %
Water/dust resistance: —; Splash resistant

Operating system: Android 14 Upside-down cake Android 14; Android 15 HyperOS 2.X (Android 15)
Google services: With Google Mobile Services; With Google Mobile Services
Updates: —; OS updates: 4 years, Security updates: 6 years

SIM: Dual SIM Dual Standby (Nano SIM + Nano SIM); Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth: Bluetooth 5.2; Bluetooth 5.2
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; 802.11a , 802.11b , 802.11g , 802.11n , 802.11ac
Wi-Fi features: Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMO; Wi-Fi Hotspot
USB: USB Type-C; USB Type-C
USB features: Charging, OTG; Charging, OTG
Navigation: GPS, A-GPS, GLONASS, Beidou, Galileo; GPS, A-GPS, GLONASS, Beidou, Galileo

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), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100); B1 (2100), B3 (1800), B5 (850), B8 (900), B28b (700), B28a (700), B40 (TDD 2300), B41 (TDD 2500)
3G: B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800); B1 (2100), B5 (850), B8 (900)
2G: B2 (1900), B3 (1800), B5 (850), B8 (900); B3 (1800), B5 (850), B8 (900)