Unihertz 8849 Tank 4 vs Xiaomi Redmi 15R

At a glance

Brand: Unihertz; Xiaomi
Release date: October 2025, 8 months ago; August 2025, 10 months ago
AnTuTu: 711.190 Antutu v10 Overall performance better than 78% of devices; 475.000 Antutu v10 Overall performance better than 72% of devices

Size: 6.78"; 6.9"
Resolution: 1200 x 2650 px QHD; 1080 x 2340 px FHD+
Type: AMOLED; LCD IPS
Density: 429 ppi Very high density; 374 ppi High 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; Hole-punch Notch, TUV Rheinland Low Blue Light, TÜV Rheinland Flicker-free Certified, Refresh rate 144 Hz, Brightnes 700 cd/m² (typ), TÜV Rheinland Eye Comfort Certification, DCI-P3, Scratch resistant, Capacitive, Multi-touch, Frameless

Chipset: MediaTek Dimensity 7300 Ultra; Qualcomm Snapdragon 6s Gen3
CPU: 4xCortex A78 2.5GHz + 4xCortex A55 2.0GHz; Kryo 2x2.3 GHz ARM Cortex A78 +6x 2.0 GHz ARM Cortex A55
CPU type: Octa-Core; Octa-Core
Process: 4 nm; 6 nm
Frequency: 2.5 GHz; 2.3 GHz
GPU: Mali-G615 MC2; Qualcomm Adreno 619
RAM: 12 GB; 12 GB
RAM type: RAM LPDDR5X; LPDDR4X RAM
64-bit: Yes; Yes

Resolution: 50 Mpx; 50 Mpx
Aperture: ƒ/ 1.88; ƒ/ 1.8
Sensor: Samsung GN1; —
Pixel size: 1.00 µm; —
Sensor size: 1/1.31"; —
Flash: Dual LED; LED
Optical stabilization: No; No
Slow motion: No, 30 fps; Yes, 60 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, Triple camera, Digital image stabilization, Autofocus, Touch focus, Continuous shooting, Geotagging, Panorama, 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; 82.1 mm 171.1 mm 8.6 mm Print 3D Model
Weight: 538 g; 224 g
Materials: Polycarbonate; Plastic
Colors: Black; Black White Purple
Water/dust resistance: IP68, MIL-STD-810H; IP64
Drop resistance: Class A B C D E 90 drops without defects; —
Repairability: Class A B C D E; —
Usable surface: 75 %; 83 %

Operating system: Android 15 Android 15; Android 15 HyperOS 2.X (Android 15)
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 5.1 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, LDAC, SBC, AAC
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); 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), 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), 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)