Oppo K12s vs Vivo Y31d

At a glance

Brand: Oppo; vivo
Release date: April 2025, 1 years 3 months ago; January 2026, 6 months ago
AnTuTu: 789.000 Antutu v10 Overall performance better than 80% of devices; 410.556 Antutu v10 Overall performance better than 68% of devices

Size: 6.67"; 6.75"
Resolution: 1080 x 2400 px FHD+; 720 x 1570 px HD+
Type: AMOLED E4; AMOLED
Density: 395 ppi High Density; 256 ppi Medium Density
Aspect ratio: 20:9; 20:9
Features: Hole-punch Notch, Refresh rate 120 Hz, Touch sampling rate 180 Hz, Brightnes 600 cd/m² (typ), Peak brightness - 2000 cd/m², Max brightness HBM - 1200 cd/m², 6000000:1 contrast ratio, HDR, DCI-P3, Scratch resistant, 2.5D glass screen, Capacitive, Multi-touch, Frameless; Water Drop Notch, 107% NTSC, Refresh rate 120 Hz, Peak brightness - 1800 cd/m², TÜV Rheinland Eye Comfort Certification, DCI-P3, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless

Chipset: Qualcomm Snapdragon 6 Gen4; Qualcomm Snapdragon 6s Gen2
CPU: 4x Cortex A78 a 2.3 GHz + 4x Cortex A55 a 1.8 GHz; 4x2.9 GHz ARM Cortex A73 +4x 1.9 GHz ARM Cortex A53
CPU type: Octa-Core; Octa-Core
Process: 4 nm; 6 nm
Frequency: 2.3 GHz; 2.9 GHz
GPU: Adreno GPU; Adreno 610
RAM: 8 GB; 6 GB
RAM type: LPDDR4X RAM; LPDDR4X RAM
64-bit: Yes; Yes

Resolution: 50 Mpx; 50 Mpx
Aperture: ƒ/ 1.85; ƒ/ 2.0
Sensor: Omnivision OV50D40 Light Hunter 400; —
Pixel size: 0.61 µm; —
Sensor size: 1/2.88"; —
Flash: LED; LED
Optical stabilization: No; No
Slow motion: No, 30 fps; Yes, 120 fps
Features: Flicker sensor, 4K Video, Digital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Geotagging, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer; 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, Front Flash

Dimensions: 76.1 mm 163.2 mm 8.4 mm Print 3D Model; 78.4 mm 166.6 mm 8.5 mm Print 3D Model
Weight: 208 g; 219 g
Materials: Plastic; Plastic
Colors: Black White Purple; Black Gray
Water/dust resistance: IP65 , IP69; IP68, IP69
Usable surface: 87 %; 85 %

Operating system: Android 15 ColorOS 15 (Android 15); Android 16 OriginOS 6 (Android 16)
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 5.2 LELow energy consumption; Bluetooth 5.1 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), HID (Human Interface Profile), LE (Low Energy); A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), LE (Low Energy)
Wi-Fi: 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax); 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac
Wi-Fi features: Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display; Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display
USB: USB Type-C; USB Type-C
USB features: Charging, OTG; Charging, OTG
Navigation: GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo; GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo

5G: n1 (2100), n5 (850), n8 (900), n28a (700), n38 (2600), n40 (2300), n41 (2500), n77 (3700), n78 (3500); —
4G LTE: B1 (2100), B3 (1800), B5 (850), B8 (900), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500); B1 (2100), B3 (1800), B5 (850), B7 (2600), B8 (900), B20 (800), B28b (700), B28a (700), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500)
3G: B1 (2100), B5 (850), B8 (900); B1 (2100), B2 (1900), B5 (850), B8 (900)
2G: B3 (1800), B5 (850), B8 (900); B3 (1800), B5 (850), B8 (900)