Unihertz 8849 Tank 4 vs Xiaomi Redmi 13X

At a glance

Brand: Unihertz; Xiaomi
Release date: October 2025, 8 months ago; March 2025, 1 years 3 months ago
AnTuTu: 711.190 Antutu v10 Overall performance better than 78% of devices; 269.266 Antutu v10 Overall performance better than 60% of devices

Size: 6.78"; 6.79"
Resolution: 1200 x 2650 px QHD; 1080 x 2460 px FHD+
Type: AMOLED; LTPS LCD
Density: 429 ppi Very high density; 388 ppi High Density
Aspect ratio: 21:9; 19.5:9
Features: Hole-punch Notch, Youji Glass - 1.1 mm, Refresh rate 120 Hz, Scratch resistant, Capacitive, Multi-touch, In-cell; Hole-punch Notch, SGS Certified, Refresh rate 90 Hz, Max brightness HBM - 550 cd/m², Scratch resistant, 2.5D curved glass glass, Capacitive, Multi-touch, Frameless

Chipset: MediaTek Dimensity 7300 Ultra; MediaTek Helio G91
CPU: 4xCortex A78 2.5GHz + 4xCortex A55 2.0GHz; 2x Cortex A75 2.0 GHz + 6x Cortex A55 1.8 GHz
CPU type: Octa-Core; Octa-Core
Process: 4 nm; 12 nm
Frequency: 2.5 GHz; 2 GHz
GPU: Mali-G615 MC2; Arm Mali-G52 MC2 850MHz
RAM: 12 GB; 6 GB
RAM type: RAM LPDDR5X; —
64-bit: Yes; Yes

Resolution: 50 Mpx; 108 Mpx
Aperture: ƒ/ 1.88; ƒ/ 1.8
Sensor: Samsung GN1; —
Pixel size: 1.00 µm; —
Sensor size: 1/1.31"; —
Flash: Dual LED; Quad LED
Optical stabilization: No; No
Slow motion: No, 30 fps; Yes, 120 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 Vision; 4K Video, Digital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Manual focus, Continuous shooting, Geotagging, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer

Dimensions: 85.4 mm 174.3 mm 23.9 mm Print 3D Model; 76.3 mm 168.6 mm 8.3 mm Print 3D Model
Weight: 538 g; 205 g
Materials: Polycarbonate; Plastic , P2i Nano coating , Splash resistant design
Colors: Black; Black Cyan
Water/dust resistance: IP68, MIL-STD-810H; —
Drop resistance: Class A B C D E 90 drops without defects; —
Repairability: Class A B C D E; —
Usable surface: 75 %; 94 %

Operating system: Android 15 Android 15; Android 14 Upside-down cake HyperOS (Android 14)
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 5.3 LELow energy consumption; Bluetooth 5.3 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), LE (Low Energy), HS; A2DP (Advanced Audio Distribution Profile), LE (Low Energy), APT-x
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
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, Galileo; GPS, A-GPS, GLONASS, Beidou, Galileo

5G: n1 (2100), n2 (1900 PCS), n3 (1800), n5 (850), n7 (2600), n8 (900), n12 (700), n20 (800), n25 (1900), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n66 (1700), 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), 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), B20 (800), 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), B6 (800), B8 (900), B19 (800); 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)