Unihertz 8849 Tank 4 vs Xiaomi Redmi R70

At a glance

Brand: Unihertz; Xiaomi
Release date: October 2025, 8 months ago; April 2026, 2 months ago
AnTuTu: 711.190 Antutu v10 Overall performance better than 78% of devices; 479.500 Antutu v10 Overall performance better than 72% of devices
Launch price: —; CN¥ 1,599.00 ($ 233.90)

Size: 6.78"; 6.9"
Resolution: 1200 x 2650 px QHD; 720 x 1600 px HD+
Type: AMOLED; LCD IPS
Density: 429 ppi Very high density; 254 ppi Medium Density
Aspect ratio: 21:9; 20:9
Features: Hole-punch Notch, Youji Glass - 1.1 mm, Refresh rate 120 Hz, Scratch resistant, Capacitive, Multi-touch, In-cell; Water Drop Notch, TUV Rheinland Low Blue Light, TÜV Rheinland Flicker-free Certified, Refresh rate 120 Hz, Touch sampling rate 240 Hz, Max brightness HBM - 800 cd/m², 1500:1 contrast ratio, TÜV Rheinland Eye Comfort Certification, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless

Chipset: MediaTek Dimensity 7300 Ultra; Unisoc T8300
CPU: 4xCortex A78 2.5GHz + 4xCortex A55 2.0GHz; 2x2.2 GHz – Cortex A78 + 6x2 GHz – Cortex A55
CPU type: Octa-Core; Octa-Core
Process: 4 nm; 6 nm
Frequency: 2.5 GHz; 2.3 GHz
GPU: Mali-G615 MC2; Mali-G57 MP2
RAM: 12 GB; 4 GB
RAM type: RAM LPDDR5X; LPDDR4X RAM
64-bit: Yes; Yes

Resolution: 50 Mpx; 13 Mpx
Aperture: ƒ/ 1.88; ƒ/ 1.8
Sensor: Samsung GN1; —
Pixel size: 1.00 µm; —
Sensor size: 1/1.31"; —
Flash: Dual LED; Dual LED
Optical stabilization: No; No
Slow motion: No, 30 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 Vision; Digital zoom, Dual 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, Dual capture

Dimensions: 85.4 mm 174.3 mm 23.9 mm Print 3D Model; 79.5 mm 171.6 mm 8.2 mm Print 3D Model
Weight: 538 g; 210 g
Materials: Polycarbonate; Plastic
Colors: Black; Black White Blue
Water/dust resistance: IP68, MIL-STD-810H; IP52
Drop resistance: Class A B C D E 90 drops without defects; —
Repairability: Class A B C D E; —
Usable surface: 75 %; 84 %

Operating system: Android 15 Android 15; Android 16 Android 16
Google services: With Google Mobile Services; Without 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 5.4 LELow energy consumption
Bluetooth profiles: A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), LE (Low Energy), HS; A2DP (Advanced Audio Distribution Profile), HID (Human Interface Profile), LE (Low Energy)
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, QZSS, 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); n1 (2100), n3 (1800), n5 (850), n8 (900), n28a (700), n38 (2600), n40 (2300), n41 (2500), n48 (3500), 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), B8 (900), B19 (800), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B48 (TDD 3600)
3G: B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800); B1 (2100), B5 (850), B8 (900)
2G: CDMA BC0 (800), CDMA BC1 (1900), B2 (1900), B3 (1800), B5 (850), B8 (900); B3 (1800), B5 (850), B8 (900)