Oppo A3i Plus vs Ulefone Armor 21

At a glance

Brand: Oppo; Ulefone
Release date: February 2025, 1 years 4 months ago; May 2023, 3 years 1 months ago
AnTuTu: 402.916 Antutu v10 Overall performance better than 66% of devices; 411.900 Antutu v10 Overall performance better than 68% of devices

Size: 6.7"; 6.58"
Resolution: 1080 x 2412 px FHD+; 1080 x 2408 px FHD+
Type: Oled; LCD IPS
Density: 394 ppi High Density; 367 ppi High 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, Peak brightness - 1200 cd/m², Max brightness HBM - 600 cd/m², Peak brightness - 950 cd/m², DCI-P3, Full sRGB standard, 10 Bits panel, Scratch resistant, AGC glass, Corning Gorilla Glass Victus, 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

Chipset: Qualcomm Snapdragon 695 (SM6375); MediaTek Helio G99 (MT6789)
CPU: 2x2.2 GHz Kryo 660 Gold +6x1.7 GHz Kryo 660 Silver; 2x Cortex A76 2.2 GHz + 6x Cortex A55 2.0 GHz
CPU type: Octa-Core; Octa-Core
Process: 6 nm; 6 nm
Frequency: 2.2 GHz; 2.2 GHz
GPU: Qualcomm Adreno 619; Mali-G57 MC2
RAM: 12 GB; 8 GB
RAM type: LPDDR4X RAM; LPDDR4X RAM
64-bit: Yes; Yes

Resolution: 50 Mpx; 64 Mpx
Aperture: ƒ/ 1.8; ƒ/ 1.9
Flash: LED; Dual LED
Optical stabilization: No; No
Slow motion: Yes, 120 fps; No, 30 fps
Features: Digital zoom, Dual camera, Digital image stabilization, Ultra stable video, Autofocus, Touch focus, Manual focus, Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, RAW, Night Mode; 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: 75.4 mm 162.5 mm 7.2 mm Print 3D Model; 81.6 mm 176.0 mm 18.1 mm Print 3D Model
Weight: 178 g; 400 g
Materials: Plastic; Rugged Smartphone, Polycarbonate
Colors: Black Green Purple Ish; Black
Usable surface: 88 %; 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 14 Upside-down cake ColorOS 14 (Android 14); Android 13 Tiramisu Android 13
Updates: OS updates: 1 years, Security updates: 3 years; —
Google services: Without 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 5.1 LELow energy consumption; Bluetooth 5.2 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)
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: Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMO; 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; GPS, A-GPS, GLONASS, Beidou, Galileo

5G: n1 (2100), n5 (850), n8 (900), n28a (700), n41 (2500), n77 (3700), n78 (3500); —
4G LTE: B1 (2100), B3 (1800), B5 (850), B8 (900), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), 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: CDMA BC0 (800), B3 (1800), B5 (850), B8 (900); CDMA BC0 (800), CDMA BC1 (1900), B2 (1900), B3 (1800), B5 (850), B8 (900)

Fingerprint: Yes, in screen; Yes, on the side
Accelerometer: Yes; Yes
Gyroscope: Yes; Yes
Proximity: Yes; Yes
Light sensor: Yes; Yes
Compass: Yes; Yes
Cooling system: Yes; No
Audio: Hi-Res Audio, Noise cancellation microphone, Stereo Speakers, 2 microphones; —
Barometer: —; Yes