blu G51S vs Ulefone Armor 21

At a glance

Brand: BLU; Ulefone
Release date: May 2022, 4 years ago; May 2023, 3 years ago
AnTuTu: 112.545 Antutu v9 Overall performance better than 52% of devices; 411.900 Antutu v10 Overall performance better than 68% of devices

Size: 6.4"; 6.58"
Resolution: 720 x 1560 px HD+; 1080 x 2408 px FHD+
Type: LCD IPS; LCD IPS
Density: 268 ppi Medium Density; 367 ppi High Density
Aspect ratio: 19.5:9; 20:9
Features: Water Drop Notch, 2.5D curved glass screen, Capacitive, Multi-touch; Water Drop Notch, Refresh rate 120 Hz, Touch sampling rate 240 Hz, Color LED Notifications, Scratch resistant, Capacitive, Multi-touch, Oleophobic coating

Chipset: Spreadtrum Unisoc SC9863A; MediaTek Helio G99 (MT6789)
CPU: 4x Cortex A55 1.6 GHz + 4x Cortex A55 1.2 GHz; 2x Cortex A76 2.2 GHz + 6x Cortex A55 2.0 GHz
CPU type: Octa-Core; Octa-Core
Process: 28 nm; 6 nm
Frequency: 1.6 GHz; 2.2 GHz
GPU: PowerVR GE8322; Mali-G57 MC2
RAM: 2 GB; 8 GB
64-bit: Yes; Yes
RAM type: —; LPDDR4X RAM

Resolution: 13 Mpx; 64 Mpx
Aperture: ƒ/ 2.0; ƒ/ 1.9
Flash: LED; Dual LED
Optical stabilization: No; No
Slow motion: No, 30 fps; No, 30 fps
Features: Digital zoom, Dual camera, Autofocus, Touch focus, Continuous shooting, 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
Sensor: —; Sony IMX686 Exmor RS
Pixel size: —; 0.80 µm
Sensor size: —; 1/1.7"

Dimensions: 77.5 mm 162.4 mm 9.0 mm Print 3D Model; 81.6 mm 176.0 mm 18.1 mm Print 3D Model
Weight: 185 g; 400 g
Materials: Plastic; Rugged Smartphone, Polycarbonate
Colors: Blue Red Bronze; Black
Usable surface: 79 %; 77 %
Water/dust resistance: —; IP68, IP69 , MIL-STD-810H
Drop resistance: —; Class A B C D E 270 drops without defects
Repairability: —; Class A B C D E

Operating system: Android 11 Red Velvet Cake Android 11 Go edition; Android 13 Tiramisu Android 13
Google services: 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 4.2; Bluetooth 5.2 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile); A2DP (Advanced Audio Distribution Profile), LE (Low Energy)
Wi-Fi: 802.11b , 802.11g , 802.11n; 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac
Wi-Fi features: Wi-Fi Hotspot; 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; GPS, A-GPS, GLONASS, Beidou, Galileo

4G LTE: B1 (2100), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B12 (700), B17 (700), B28a (700); 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), B2 (1900), B4 (1700/2100 AWS A-F), 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)