Ulefone Armor X31 Pro 5G vs Vivo Y21 5G

At a glance

Brand: Ulefone; vivo
Release date: December 2024, 1 years 6 months ago; March 2026, 3 months ago
AnTuTu: 406.666 Antutu v10 Overall performance better than 66% of devices; 409.000 Antutu v10 Overall performance better than 67% of devices

Size: 6.56"; 6.74"
Resolution: 720 x 1612 px HD+; 720 x 1600 px HD+
Type: LCD IPS; LCD IPS
Density: 269 ppi Medium Density; 260 ppi Medium Density
Aspect ratio: 20:9; 20:9
Features: Hole-punch Notch, Refresh rate 120 Hz, Touch sampling rate 240 Hz, Max brightness HBM - 800 cd/m², Scratch resistant, Corning Gorilla Glass 5, Capacitive, Multi-touch, Oleophobic coating; Water Drop Notch, TUV Rheinland Low Blue Light, Refresh rate 120 Hz, Max brightness HBM - 1200 cd/m², 83% NTSC, Scratch resistant, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless

Chipset: MediaTek Dimensity 6300; MediaTek Dimensity 6300
CPU: 2x2.4 GHz ARM Cortex A76 +6x2.0 GHz ARM Cortex A55; 2x2.4 GHz ARM Cortex A76 +6x2.0 GHz ARM Cortex A55
CPU type: Octa-Core; Octa-Core
Process: 6 nm; 6 nm
Frequency: 2.4 GHz; 2.4 GHz
GPU: Arm Mali-G57 MC2; Arm Mali-G57 MC2
RAM: 8 GB; 6 GB
RAM type: LPDDR4X RAM; LPDDR4X RAM
64-bit: Yes; Yes

Resolution: 64 Mpx; 50 Mpx
Aperture: ƒ/ 1.9; ƒ/ 1.8
Sensor: Sony IMX682 Exmor RS; —
Pixel size: 0.80 µm; —
Sensor size: 1/1.7"; —
Flash: Dual LED; LED
Optical stabilization: No; No
Slow motion: Yes, 120 fps; No, 30 fps
Features: Digital zoom, Triple camera, Digital image stabilization, 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, Night Mode, Night Vision; 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

Dimensions: 82.0 mm 173.8 mm 13.7 mm Print 3D Model; 77.1 mm 167.4 mm 8.4 mm Print 3D Model
Weight: 306 g; 209 g
Materials: Rugged Smartphone, Polycarbonate; Plastic
Colors: Black Green Orange; Black Silver
Water/dust resistance: IP68, IP69 , MIL-STD-810H; IP65 , MIL-STD-810H
Drop resistance: Class A B C D E 270 drops without defects; Class A B C D E 270 drops without defects
Repairability: Class A B C D E; Class A B C D E
Usable surface: 72 %; 85 %

Operating system: Android 14 Upside-down cake Android 14; Android 16 OriginOS 6 (Android 16)
Google services: With Google Mobile Services; With Google Mobile Services
Updates: —; OS updates: 5 years

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 5.4 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), LE (Low Energy); A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), HID (Human Interface 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
Wi-Fi features: 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, NavIC System; GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo

5G: n1 (2100), n2 (1900 PCS), n3 (1800), n5 (850), n7 (2600), n8 (900), n20 (800), n25 (1900), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n66 (1700), n71 (600), n77 (3700), n78 (3500), n79 (4700); n1 (2100), n3 (1800), n5 (850), n7 (2600), n8 (900), n20 (800), n28b (700), n28a (700), n38 (2600), 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), B18 (800), B19 (800), B20 (800), B25 (1900+), B26 (850), B28b (700), B28a (700), B32 (1500), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100), B71 (600); B1 (2100), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B19 (800), B20 (800), B28b (700), B28a (700), B38 (TDD 2600), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100), B71 (600)
3G: B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800); B1 (2100), B4 (1700/2100 AWS A-F), B5 (850), B8 (900)
2G: B2 (1900), B3 (1800), B5 (850), B8 (900); B3 (1800), B5 (850), B8 (900)