Nokia XR21 vs realme C51

At a glance

Brand: Nokia; realme
Release date: May 2023, 3 years ago; July 2023, 2 years 10 months ago
Launch price: € 599.00 ($ 699.51); —
AnTuTu: 396.000 Antutu v10 Overall performance better than 65% of devices; 220.000 Antutu v9 Overall performance better than 56% of devices

Size: 6.49"; 6.74"
Resolution: 1080 x 2400 px FHD+; 720 x 1600 px HD+
Type: LCD IPS; LCD IPS
Density: 406 ppi Very high density; 262 ppi Medium Density
Aspect ratio: 20:9; 20:9
Features: Hole-punch Notch, Glove touch support, Refresh rate 120 Hz, Brightnes 450 cd/m² (typ), Max brightness HBM - 550 cd/m², NTSC, 82% NTSC, Corning Gorilla Glass Victus, Capacitive, Multi-touch; Water Drop Notch, Refresh rate 90 Hz, Touch sampling rate 180 Hz, 560 cd/m² maximum brightness, 1500:1 contrast ratio, Scratch resistant, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless

Chipset: Qualcomm Snapdragon 695 (SM6375); Unisoc Tiger T612 / T7225
CPU: 2x2.2 GHz Kryo 660 Gold +6x1.7 GHz Kryo 660 Silver; 2 x ARM Cortex A75 1.8Ghz + 6 x ARM Cortex A55 1.8Ghz
CPU type: Octa-Core; Octa-Core
Process: 6 nm; 12 nm
Frequency: 2.2 GHz; 1.8 GHz
GPU: Qualcomm Adreno 619; Mali-G57 MP1
RAM: 6 GB; 4 GB
RAM type: LPDDR4X RAM; LPDDR4X RAM
64-bit: Yes; Yes

Resolution: 64 Mpx; 50 Mpx
Aperture: ƒ/ 1.8; ƒ/ 1.8
Flash: Dual LED; LED
Optical stabilization: No; No
Slow motion: No, 30 fps; No, 30 fps
Features: 4K Video, Dual camera, Autofocus, Touch focus, Geotagging, Panorama, HDR, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer; Digital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Phase detection autofocus (PDAF), Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer
Sensor: —; Samsung S5KJN1
Pixel size: —; 0.64 µm
Sensor size: —; 1/2.76"

Dimensions: 78.6 mm 168.0 mm 10.5 mm Print 3D Model; 76.7 mm 167.2 mm 8.0 mm Print 3D Model
Weight: 231 g; 186 g
Materials: Polycarbonate; Plastic
Colors: Green Night Black; Black Green
Water/dust resistance: IP68, IP69 , MIL-STD-810H; —
Usable surface: 77 %; 84 %

Operating system: Android 12 Snow Cone Android 12; Android 13 Tiramisu Android 13
Google services: With Google Mobile Services; With Google Mobile Services
Updates: —; OS updates: 1 years, Security updates: 2 years

SIM: Dual SIM Dual Standby (Nano SIM + Nano SIM / eSIM); Dual SIM Dual Standby (Nano SIM + Nano SIM)
Bluetooth: Bluetooth 5.1 LELow energy consumption; Bluetooth 5.0 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), LE (Low Energy), APT-x, LDAC, SBC, AAC; A2DP (Advanced Audio Distribution Profile), LE (Low Energy), LDAC, SBC, AAC
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, Wi-Fi MiMO
USB: USB Type-C; USB Type-C
USB features: Charging, OTG; Charging, OTG
Navigation: GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), BeiDou (B1), Galileo (E1+E5a), NavIC System, QZSS (L1 + L5); GPS, A-GPS, GLONASS, Galileo

5G: n1 (2100), n2 (1900 PCS), n3 (1800), n5 (850), n7 (2600), n20 (800), n25 (1900), n28b (700), n28a (700), n40 (2300), n41 (2500), n66 (1700), n71 (600), 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), B20 (800), B25 (1900+), B26 (850), B28b (700), B28a (700), B32 (1500), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B43 (TDD 3700), B48 (TDD 3600), B66 (1700/2100), B71 (600); B1 (2100), B3 (1800), B5 (850), B8 (900), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500)
3G: B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B8 (900); B1 (2100), B5 (850), B8 (900)
2G: B2 (1900), B3 (1800), B5 (850), B8 (900); B2 (1900), B3 (1800), B5 (850), B8 (900)