Ulefone Armor 21 vs Xiaomi Redmi A4

In sintesi

Marca: Ulefone; Xiaomi
Data di uscita: maggio 2023, 3 anni e 1 mesi fa; novembre 2024, 1 anni e 7 mesi fa
AnTuTu: 411.900 Antutu v10 Overall performance better than 68% of devices; 383.772 Antutu v10 Overall performance better than 65% of devices
Prezzo di lancio: —; ₹ 9,499.00 ($ 100.78)

Dimensione: 6.58"; 6.88"
Risoluzione: 1080 x 2408 px FHD+; 720 x 1640 px HD+
Tipo: LCD IPS; LCD IPS
Densità: 367 ppi High Density; 260 ppi Medium Density
Rapporto d’aspetto: 20:9; 21:9
Caratteristiche: Water Drop Notch, Refresh rate 120 Hz, Touch sampling rate 240 Hz, Color LED Notifications, Scratch resistant, Capacitive, Multi-touch, Oleophobic coating; Water Drop Notch, TÜV Rheinland Flicker-free Certified, TÜV Low Blue Light, Refresh rate 120 Hz, Touch sampling rate 240 Hz, Brightnes 450 cd/m² (typ), Max brightness HBM - 600 cd/m², TÜV Rheinland Eye Comfort Certification, DCI-P3, Scratch resistant, 2.5D curved glass screen, Capacitive, Frameless

Chipset: MediaTek Helio G99 (MT6789); Qualcomm Snapdragon 4s Gen 2
CPU: 2x Cortex A76 2.2 GHz + 6x Cortex A55 2.0 GHz; 2x2.2 GHz Cortex A78 +6x2.0 GHz Cortex A55
Tipo di CPU: Octa-Core; Octa-Core
Processo: 6 nm; 4 nm
Frequenza: 2.2 GHz; 2.2 GHz
GPU: Mali-G57 MC2; Qualcomm Adreno 613
RAM: 8 GB; 4 GB
Tipo di RAM: LPDDR4X RAM; LPDDR4X RAM
64 bit: Yes; Yes

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

Dimensioni: 81.6 mm 176.0 mm 18.1 mm Print 3D Model; 77.8 mm 171.9 mm 8.2 mm Print 3D Model
Peso: 400 g; 213 g
Materiali: Rugged Smartphone, Polycarbonate; Polycarbonate , Glass
Colori: Black; Black Purple
Resistenza ad acqua/polvere: IP68, IP69 , MIL-STD-810H; IP52
Resistenza alle cadute: Class A B C D E 270 drops without defects; —
Riparabilità: Class A B C D E; —
Superficie utile: 77 %; 84 %

Sistema operativo: Android 13 Tiramisu Android 13; Android 14 Upside-down cake HyperOS (Android 14)
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 5.2 LELow energy consumption; Bluetooth 5.0 LELow energy consumption
Profili Bluetooth: A2DP (Advanced Audio Distribution Profile), LE (Low Energy); A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), HID (Human Interface Profile), LE (Low Energy), AAC
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, 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), 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); B1 (2100), B3 (1800), B5 (850), B7 (2600), B8 (900), B28b (700), B28a (700), 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), B2 (1900), B5 (850), B8 (900)
2G: CDMA BC0 (800), CDMA BC1 (1900), B2 (1900), B3 (1800), B5 (850), B8 (900); B2 (1900), B3 (1800), B5 (850), B8 (900)
5G: —; n1 (2100), n3 (1800), n5 (850), n8 (900), n28b (700), n28a (700), n40 (2300), n78 (3500)