Unihertz 8849 Tank X vs Vivo iQOO 15 Ultra
Unihertz
8849 Tank X
Vivo
iQOO 15 Ultra
At a glance
- Brand
- Unihertz
- vivo
- Release date
- February 2026, 3 months ago
- February 2026, 3 months ago
- AnTuTu
- 885.456 Antutu v10 Overall performance better than 83% of devices
- 4.518.403 Antutu v11 Overall performance better than 100% of devices
- Launch price
- —
- CN¥ 5,699.00 ($ 832.57)
Display
- Size
- 6.78"
- 6.85"
- Resolution
- 1080 x 2460 px FHD+
- 1440 x 3168 px WQHD+
- Type
- LCD IPS
- AMOLED Samsung
- Density
- 396 ppi High Density
- 508 ppi Very high density
- Aspect ratio
- 21:9
- 20:9
- 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, 2160 Hz PWM, TÜV Low Blue Light, 1-144 Hz refresh rate, Refresh rate 144 Hz, Touch sampling rate 480 Hz, Brightnes 1000 cd/m² (typ), Max brightness HBM - 2600 cd/m², Peak brightness - 8000 cd/m², 8000000:1 contrast ratio, TÜV Rheinland Eye Comfort Certification, HDR10+, DCI-P3, DC dimming, 10 Bits panel, Dolby Vision, Scratch resistant, Capacitive, Multi-touch, Frameless, LTPO (Low Temperature PolySilicon oxide)
Performance
- Chipset
- MediaTek Dimensity 8200 (MT6896)
- Qualcomm Snapdragon 8 Elite Gen 5
- CPU
- 1x Cortex A78 3.1 GHz + 3x Cortex A78 3.0 GHz + 4x Cortex A55 2.0 GHz
- 2x4.61 GHz ARM + 6x3.63 GHz ARM
- CPU type
- Octa-Core
- Octa-Core
- Process
- 4 nm
- 3 nm
- Frequency
- 3.1 GHz
- 4.61 GHz
- GPU
- Arm Mali-G610 MC6
- Adreno 840 1.2 GHz
- RAM
- 16 GB
- 16 GB
- RAM type
- RAM LPDDR5
- RAM LPDDR5X
- 64-bit
- Yes
- Yes
Rear camera
- Resolution
- 50 Mpx
- 50 Mpx
- Aperture
- ƒ/ 1.88
- ƒ/ 1.88
- Sensor
- Sony IMX766
- Sony IMX921
- Pixel size
- 1.00 µm
- 1.00 µm
- Sensor size
- 1/1.56"
- 1/1.56"
- Flash
- Dual LED
- Quad LED
- Optical stabilization
- No
- Yes
- Slow motion
- No, 30 fps
- Yes, 960 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
- UIS, Flicker sensor, Noise reduction, Time-Lapse, 4K Video, 8K Video, Digital zoom, Optical zoom, Triple camera, Digital image stabilization, Optical Stabilization (OIS), Autofocus, Touch focus, Manual focus, Phase detection autofocus (PDAF), Laser autofocus (LAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, RAW, Night Mode
Front camera
- Resolution
- 50 Mpx
- 32 Mpx
- Aperture
- ƒ/ 2.25
- ƒ/ 2.2
- Sensor
- Hynix Hi-5022Q
- GalaxyCore GC32E1
- Pixel size
- 0.70 µm
- 0.70 µm
Battery
- Capacity
- 17600 mAh
- 7400 mAh
- Type
- Li-Polymer
- Si-Carbon Li-Ion
- Fast charge
- Yes , 66.0W
- Yes , 100.0W
- Features
- Non-removable
- Wireless charging, Reverse charging, Non-removable
- Wireless charging
- —
- 40W Wireless 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
- 76.8 mm 163.6 mm 8.7 mm Print 3D Model
- Weight
- 750 g
- 227 g
- Materials
- Polycarbonate
- Glass , Aluminium
- Colors
- Black
- Blue Gray
- Water/dust resistance
- IP68, MIL-STD-810H
- IP68
- Usable surface
- 71 %
- 90 %
Software
- Operating system
- Android 15 Android 15
- Android 16 OriginOS 6 (Android 16)
- Google services
- With Google Mobile Services
- Without Google Mobile services
- Updates
- —
- OS updates: 5 years, Security updates: 5 years
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), QZSS (L1 + L5), Galileo (E1+E5a+E5b)
Networks
- 5G
- n1 (2100), n2 (1900 PCS), n12 (700), n20 (800), n25 (1900), n28b (700), n28a (700)
- n1 (2100), n2 (1900 PCS), n3 (1800), n5 (850), n7 (2600), n8 (900), n12 (700), n18 (850), n20 (800), n25 (1900), n26 (850), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n48 (3500), n66 (1700), n75 (1500), n77 (3700), n78 (3500), n80 (1800), n81 (900), n83A (700), n83B (700), n84 (2100)
- 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), B2 (1900), B3 (1800), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700), B17 (700), B18 (800), B19 (800), B20 (800), B25 (1900+), B26 (850), B28b (700), B28a (700), B32 (1500), 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), B6 (800), B8 (900), B19 (800)
- 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
- —
- Proximity
- Yes
- Yes
- Light sensor
- Yes
- Yes
- Barometer
- Yes
- —
- Compass
- Yes
- —
- Cooling system
- No
- Yes
- Audio
- Noise cancellation microphone, 2 microphones
- Stereo Speakers
