Unihertz 8849 Tank X vs Xiaomi Redmi K90 Max
Unihertz
8849 Tank X
Xiaomi
Redmi K90 Max
At a glance
- Brand
- Unihertz
- Xiaomi
- Release date
- February 2026, 3 months ago
- April 2026, 1 months ago
- AnTuTu
- 885.456 Antutu v10 Overall performance better than 83% of devices
- 3.485.900 Antutu v11 Overall performance better than 98% of devices
Display
- Size
- 6.78"
- 6.83"
- Resolution
- 1080 x 2460 px FHD+
- 1280 x 2772 px QHD
- Type
- LCD IPS
- AMOLED
- Density
- 396 ppi High Density
- 447 ppi Very high density
- Aspect ratio
- 21:9
- 19.5:9
- Features
- Hole-punch Notch, Youji Glass - 1.1 mm, Refresh rate 120 Hz, Peak brightness - 750 cd/m², Scratch resistant, Capacitive, Multi-touch, In-cell
- Hole-punch Notch, SGS Certified, TÜV Rheinland Flicker-free Certified, TÜV Low Blue Light, 3840 Hz PWM, Refresh rate 165 Hz, Touch sampling rate 480 Hz, Peak brightness - 3500 cd/m², 8000000:1 contrast ratio, TÜV Rheinland Eye Comfort Certification, HDR10+, DCI-P3, 12 Bits panel (10-bit +2-bit FRC), Dolby Vision, Scratch resistant, Capacitive, Multi-touch, Frameless
Performance
- Chipset
- MediaTek Dimensity 8200 (MT6896)
- MediaTek Dimensity 9500
- CPU
- 1x Cortex A78 3.1 GHz + 3x Cortex A78 3.0 GHz + 4x Cortex A55 2.0 GHz
- 1x4,21 GHz C1 Ultra + 3x3,5 GHz C1 Premium + 4x2,7 GHz C1 Pro
- CPU type
- Octa-Core
- Octa-Core
- Process
- 4 nm
- 3 nm
- Frequency
- 3.1 GHz
- 4.21 GHz
- GPU
- Arm Mali-G610 MC6
- Mali G1 Ultra
- RAM
- 16 GB
- 12 GB
- RAM type
- RAM LPDDR5
- RAM LPDDR5X
- 64-bit
- Yes
- Yes
Rear camera
- Resolution
- 50 Mpx
- 50 Mpx
- Aperture
- ƒ/ 1.88
- ƒ/ 1.7
- Sensor
- Sony IMX766
- Omnivision OV50 Light Fusion 800
- Pixel size
- 1.00 µm
- 1.00 µm
- Sensor size
- 1/1.56"
- 1/1.55"
- Flash
- Dual LED
- LED
- Optical stabilization
- No
- Yes
- 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
- Flicker sensor, Noise reduction, 4K Video, 8K Video, Digital zoom, Dual camera, Digital image stabilization, Optical Stabilization (OIS), Autofocus, Touch focus, Manual focus, Laser autofocus (LAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, Night Mode
Front camera
- Resolution
- 50 Mpx
- 20 Mpx
- Aperture
- ƒ/ 2.25
- ƒ/ 2.2
- Sensor
- Hynix Hi-5022Q
- —
- Pixel size
- 0.70 µm
- —
Battery
- Capacity
- 17600 mAh
- 8500 mAh
- Type
- Li-Polymer
- Si-Carbon Li-Ion
- Fast charge
- Yes , 66.0W
- Yes , 100.0W
- Features
- Non-removable
- Reverse charging, Non-removable
- Wireless charging
- —
- 27W reverse charging
Storage
- Capacity
- 256 GB
- 256 GB
- Type
- UFS Storage 3.1
- UFS Storage 4.1
- SD slot
- Yes , Independent SD slot
- No
Body
- Dimensions
- 86.0 mm 179.0 mm 25.0 mm Print 3D Model
- 77.9 mm 162.9 mm 8.2 mm Print 3D Model
- Weight
- 750 g
- 227 g
- Materials
- Polycarbonate
- Aluminium alloy , Fiberglass
- Colors
- Black
- Black Blue Gray
- Water/dust resistance
- IP68, MIL-STD-810H
- IP68, IP69
- Usable surface
- 71 %
- 90 %
Software
- Operating system
- Android 15 Android 15
- Android 16 HyperOS 3.X (Android 16)
- Google services
- With Google Mobile Services
- Without Google Mobile services
Connectivity
- 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), 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, WiFi 6 (802.11ax) , WiFi 7 (802.11be)
- Wi-Fi features
- 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, Galileo
- GPS, A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)
Networks
- 5G
- n1 (2100), n2 (1900 PCS), n12 (700), n20 (800), n25 (1900), n28b (700), n28a (700)
- n1 (2100), n3 (1800), n5 (850), n7 (2600), n8 (900), n28a (700), n38 (2600), n40 (2300), n41 (2500), n48 (3500), 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), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B19 (800), B28a (700), B34 (TDD 2100), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), B43 (TDD 3700), B48 (TDD 3600), B66 (1700/2100)
- 3G
- B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800)
- B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), 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)
Sensors & security
- Fingerprint
- Yes, on the side
- Yes, in screen
- Accelerometer
- Yes
- Yes
- Gyroscope
- Yes
- Yes
- Proximity
- Yes
- —
- Light sensor
- Yes
- Yes
- Barometer
- Yes
- —
- Compass
- Yes
- —
- Cooling system
- No
- Yes
- Audio
- Noise cancellation microphone, 2 microphones
- Noise cancellation microphone, Stereo Speakers, 2 microphones
