Oppo A57s vs Ulefone Armor 21

In sintesi

Marca: Oppo; Ulefone
Data di uscita: agosto 2022, 3 anni e 10 mesi fa; maggio 2023, 3 anni e 1 mesi fa
AnTuTu: 110.000 Antutu v8 Overall performance better than 51% of devices; 411.900 Antutu v10 Overall performance better than 68% of devices

Dimensione: 6.56"; 6.58"
Risoluzione: 720 x 1612 px HD+; 1080 x 2408 px FHD+
Tipo: LCD IPS; LCD IPS
Densità: 269 ppi Medium Density; 367 ppi High Density
Rapporto d’aspetto: 20:9; 20:9
Caratteristiche: Water Drop Notch, Refresh rate 120 Hz, Brightnes 480 cd/m² (typ), Max brightness HBM - 600 cd/m², 1500:1 contrast ratio, DCI-P3, 96% NTSC, Scratch resistant, 2.5D curved glass screen, Panda glass, Capacitive, Multi-touch, Frameless; Water Drop Notch, Refresh rate 120 Hz, Touch sampling rate 240 Hz, Color LED Notifications, Scratch resistant, Capacitive, Multi-touch, Oleophobic coating

Risoluzione: 50 Mpx; 64 Mpx
Apertura: ƒ/ 1.8; ƒ/ 1.9
Flash: LED; Dual LED
Stabilizzazione ottica: No; No
Slow motion: Yes, 120 fps; No, 30 fps
Caratteristiche: Triple camera, Digital image stabilization, Autofocus, Touch focus, Manual focus, Phase detection autofocus (PDAF), Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer; Digital zoom, 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
Sensore: —; Sony IMX686 Exmor RS
Dimensione pixel: —; 0.80 µm
Dimensione sensore: —; 1/1.7"

Dimensioni: 75.0 mm 163.8 mm 8.0 mm Print 3D Model; 81.6 mm 176.0 mm 18.1 mm Print 3D Model
Peso: 187 g; 400 g
Materiali: Plastic; Rugged Smartphone, Polycarbonate
Colori: Black Blue; Black
Resistenza ad acqua/polvere: IP54; IP68, IP69 , MIL-STD-810H
Superficie utile: 82 %; 77 %
Resistenza alle cadute: —; Class A B C D E 270 drops without defects
Riparabilità: —; Class A B C D E

Sistema operativo: Android 12 Snow Cone ColorOS 12.1 (Android 12); Android 13 Tiramisu Android 13
Servizi Google: 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 5.3 LELow energy consumption; Bluetooth 5.2 LELow energy consumption
Profili Bluetooth: A2DP (Advanced Audio Distribution Profile), LE (Low Energy), APT-x, LDAC, SBC, AAC; A2DP (Advanced Audio Distribution Profile), LE (Low Energy)
Wi-Fi: 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac; 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac
Funzioni Wi-Fi: 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
Funzioni USB: Charging, OTG; Charging, OTG
Navigazione: GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo; GPS, A-GPS, GLONASS, Beidou, Galileo

4G LTE: 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); B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B17 (700), B18 (800), B19 (800), B20 (800), B28b (700), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100)
3G: B1 (2100), B5 (850), B8 (900); B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B8 (900)
2G: B2 (1900), B3 (1800), B5 (850), B8 (900); CDMA BC0 (800), CDMA BC1 (1900), B2 (1900), B3 (1800), B5 (850), B8 (900)