Oppo K13 vs Ulefone Armor 28 Ultra

At a glance

Brand: Oppo; Ulefone
Release date: April 2025, 1 years 2 months ago; September 2024, 1 years 9 months ago
AnTuTu: 789.000 Antutu v10 Overall performance better than 80% of devices; 2.348.416 Antutu v11 Overall performance better than 96% of devices

Size: 6.67"; 6.67"
Resolution: 1080 x 2400 px FHD+; 1080 x 2400 px FHD+
Type: AMOLED E4; AMOLED
Density: 395 ppi High Density; 395 ppi High Density
Aspect ratio: 20:9; 20:9
Features: Hole-punch Notch, Refresh rate 120 Hz, Touch sampling rate 180 Hz, Brightnes 600 cd/m² (typ), Peak brightness - 2000 cd/m², Max brightness HBM - 1200 cd/m², 6000000:1 contrast ratio, HDR, DCI-P3, Scratch resistant, 2.5D glass screen, Capacitive, Multi-touch, Frameless; Hole-punch Notch, Refresh rate 120 Hz, Touch sampling rate 480 Hz, Peak brightness - 2200 cd/m², HDR10, DCI-P3, DC dimming, Scratch resistant, Corning Gorilla Glass Victus, Capacitive, Multi-touch, Frameless

Chipset: Qualcomm Snapdragon 6 Gen4; MediaTek Dimensity 9300+
CPU: 4x Cortex A78 a 2.3 GHz + 4x Cortex A55 a 1.8 GHz; 1xCortex X4 3,4GHZ + 3xCortex X4 2,85GHZ + 4xCortex A720 2GHZ
CPU type: Octa-Core; Octa-Core
Process: 4 nm; 4 nm
Frequency: 2.3 GHz; 3.25 GHz
GPU: Adreno GPU; Immortalis-G720 MC12 1300MHz
RAM: 8 GB; 16 GB
RAM type: LPDDR4X RAM; —
64-bit: Yes; Yes

Resolution: 50 Mpx; 50 Mpx
Aperture: ƒ/ 1.85; ƒ/ 1.9
Sensor: Omnivision OV50D40 Light Hunter 400; Sony IMX989
Pixel size: 0.61 µm; 0.80 µm
Sensor size: 1/2.88"; 1"
Flash: LED; Quad LED
Optical stabilization: No; No
Slow motion: No, 30 fps; Yes, 120 fps
Features: Flicker sensor, 4K Video, Digital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Geotagging, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer; Cinematic Mode, Flicker sensor, Noise reduction, Digital zoom, Triple camera, Digital image stabilization, Autofocus, Touch focus, Manual focus, Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, Night Mode, Night Vision

Dimensions: 76.1 mm 163.2 mm 8.4 mm Print 3D Model; 83.6 mm 174.2 mm 19.4 mm Print 3D Model
Weight: 208 g; 450 g
Materials: Plastic; Rugged Smartphone, Polycarbonate
Colors: Black Violet; Black
Water/dust resistance: IP65 , IP69; IP68, IP69 , MIL-STD-810H
Usable surface: 87 %; 73 %
Drop resistance: —; Class A B C D E 270 drops without defects
Repairability: —; Class A B C D E

Operating system: Android 16 ColorOS 16 (Android 16); Android 14 Upside-down cake Android 14
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 5.2 LELow energy consumption; Bluetooth 5.4 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), HID (Human Interface Profile), LE (Low Energy); A2DP (Advanced Audio Distribution Profile), LE (Low Energy), LDAC, SBC, AAC, LHDC
Wi-Fi: 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax); 802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax) , WiFi 7 (802.11be)
Wi-Fi features: Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display; Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display, Wi-Fi MiMO
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, QZSS, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), Galileo (E1+E5a+E5b)

5G: n1 (2100), n5 (850), n8 (900), n28b (700), n40 (2300), n41 (2500), n77 (3700), n78 (3500); n1 (2100), n3 (1800), n5 (850), n7 (2600), n8 (900), n20 (800), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n66 (1700), n77 (3700), n78 (3500)
4G LTE: B1 (2100), B3 (1800), B5 (850), B8 (900), B28b (700), B40 (TDD 2300), B41 (TDD 2500); B1 (2100), 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), B26 (850), B28b (700), B28a (700), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B66 (1700/2100)
3G: B1 (2100), B8 (900); B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800)
2G: B3 (1800), B8 (900); CDMA BC0 (800), B3 (1800), B5 (850), B8 (900)