Oppo Find X8 Ultra vs Poco C81x

At a glance

Brand: Oppo; POCO
Release date: April 2025, 1 years 2 months ago; April 2026, 2 months ago
AnTuTu: 3.170.477 Antutu v11 Overall performance better than 98% of devices; 308.681 Antutu v10 Overall performance better than 61% of devices

Size: 6.82"; 6.88"
Resolution: 1440 x 3168 px WQHD+; 720 x 1640 px HD+
Type: AMOLED BOE; LCD IPS
Density: 510 ppi Very high density; 260 ppi Medium Density
Aspect ratio: 20:9; 21:9
Features: Hole-punch Notch, 1-120 Hz refresh rate, Refresh rate 120 Hz, Variable refresh rate VRR, Brightnes 800 cd/m² (typ), Max brightness HBM - 1600 cd/m², Peak brightness - 4500 cd/m², TÜV Rheinland Eye Comfort Certification, HDR10+, DCI-P3, 10 Bits panel, Dolby Vision, Scratch resistant, Corning Gorilla Glass Victus 2, Capacitive, Multi-touch, Frameless, LTPO (Low Temperature PolySilicon oxide); 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: Qualcomm Snapdragon 8 Elite; Unisoc Tiger T615 (T7250)
CPU: 2x4.32 GHz Oryon V2 Phoenix L+ 6x3.53 GHz Oryon V2 Phoenix M; 2 x ARM Cortex A75 1.8Ghz + 6 x ARM Cortex A55 1.6Ghz
CPU type: Octa-Core; Octa-Core
Process: 3 nm; 12 nm
Frequency: 4.32 GHz; 1.8 GHz
GPU: Adreno 830; Mali-G57 MP1
RAM: 12 GB; 3 GB
RAM type: RAM LPDDR5X; LPDDR4X RAM
64-bit: Yes; Yes

Resolution: 50 Mpx; 13 Mpx
Aperture: ƒ/ 1.8; ƒ/ 2.0
Sensor: Sony LYT-900; —
Pixel size: 1.60 µm; —
Sensor size: 1"; —
Flash: LED; LED
Optical stabilization: Yes; No
Slow motion: Yes, 960 fps; No, 30 fps
Features: Flicker sensor, Noise reduction, 4K Video, Digital zoom, Optical zoom, Quadruple camera, Digital image stabilization, Optical Stabilization (OIS), Ultra stable video, Autofocus, Touch focus, Continuous autofocus, Manual focus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, RAW, Night Mode; Digital zoom, Dual camera, Autofocus, Touch focus, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer

Capacity: 6100 mAh; 5200 mAh
Type: Si-Carbon Li-Ion; Li-Polymer
Fast charge: Yes , 100.0W; Yes , 15.0W
Wireless charging: 50W wireless fast charging, 10W Wireless Reverse Charge; —
Features: Wireless charging, Reverse charging, Non-removable; Non-removable

Dimensions: 76.8 mm 163.1 mm 8.8 mm Print 3D Model; 77.8 mm 171.8 mm 8.3 mm Print 3D Model
Weight: 226 g; 193 g
Materials: Aluminium alloy , Glass; Plastic
Colors: Black White Pink; Black Cyan
Water/dust resistance: IP68; Splash resistant
Usable surface: 90 %; 84 %

Operating system: Android 15 ColorOS 15 (Android 15); Android 15 HyperOS 2.X (Android 15)
Updates: OS updates: 4 years, Security updates: 5 years; OS updates: 4 years, Security updates: 6 years
Google services: Without 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 5.4 LELow energy consumption; Bluetooth 5.2
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), LE (Low Energy), APT-x, LDAC, SBC, AAC; A2DP (Advanced Audio Distribution Profile)
Wi-Fi: 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax) , WiFi 6E , WiFi 7 (802.11be); 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, QZSS, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), QZSS (L1 + L5); GPS, A-GPS, GLONASS, Beidou, Galileo

5G: n1 (2100), n3 (1800), n5 (850), n7 (2600), n8 (900), n20 (800), n28a (700), n38 (2600), n40 (2300), n41 (2500), n66 (1700), n77 (3700), n78 (3500), n79 (4700), n80 (1800), n84 (2100); —
4G LTE: B1 (2100), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B18 (800), B19 (800), B20 (800), B26 (850), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B48 (TDD 3600), B66 (1700/2100); B1 (2100), B3 (1800), B5 (850), B8 (900), B28b (700), B28a (700), B40 (TDD 2300), B41 (TDD 2500)
3G: B1 (2100), B4 (1700/2100 AWS A-F), B5 (850), B8 (900); B1 (2100), B5 (850), B8 (900)
2G: CDMA BC0 (800), B3 (1800), B5 (850), B8 (900); B3 (1800), B5 (850), B8 (900)