Unihertz 8849 Tank 4 vs Vivo X300

Unihertz 8849 Tank 4
Unihertz
8849 Tank 4
Vivo X300
Vivo
X300

At a glance

Brand
Unihertz
vivo
Release date
October 2025, 8 months ago
October 2025, 8 months ago
AnTuTu
711.190 Antutu v10 Overall performance better than 78% of devices
3.646.540 Antutu v11 Overall performance better than 99% of devices

Display

Size
6.78"
6.31"
Resolution
1200 x 2650 px QHD
1216 x 2640 px QHD
Type
AMOLED
AMOLED
Density
429 ppi Very high density
461 ppi Very 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, 1-120 Hz refresh rate, 2160 Hz PWM, Refresh rate 144 Hz, Touch sampling rate 300 Hz, Brightnes 800 cd/m² (typ), Max brightness HBM - 1600 cd/m², Peak brightness - 4500 cd/m², 8000000:1 contrast ratio, TÜV Rheinland Eye Comfort Certification, HDR10+, DCI-P3, DC dimming, 10 Bits panel, Scratch resistant, Capacitive, Multi-touch, Frameless, LTPO (Low Temperature PolySilicon oxide)

Performance

Chipset
MediaTek Dimensity 7300 Ultra
MediaTek Dimensity 9500s
CPU
4xCortex A78 2.5GHz + 4xCortex A55 2.0GHz
1x3,73 GHz C1 Ultra + 3x3 GHz C1 Premium + 4x2,4 GHz C1 Pro
CPU type
Octa-Core
Octa-Core
Process
4 nm
3 nm
Frequency
2.5 GHz
3.73 GHz
GPU
Mali-G615 MC2
Mali G1 Ultra 1612 MHz
RAM
12 GB
16 GB
RAM type
RAM LPDDR5X
64-bit
Yes
Yes

Rear camera

Resolution
50 Mpx
200 Mpx
Aperture
ƒ/ 1.88
ƒ/ 1.69
Sensor
Samsung GN1
Samsung ISOCELL HPB
Pixel size
1.00 µm
0.56 µm
Sensor size
1/1.31"
1/1.4"
Flash
Dual LED
Dual LED
Optical stabilization
No
Yes
Slow motion
No, 30 fps
Yes, 240 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, Noise reduction, Time-Lapse, 4K 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
32 Mpx
50 Mpx
Aperture
ƒ/ 2.25
ƒ/ 2.0
Sensor
Samsung S5KGD1
Samsung S5KJN1
Pixel size
0.80 µm
0.64 µm

Battery

Capacity
11600 mAh
6040 mAh
Type
Li-Polymer
Li-Ion
Fast charge
Yes , 66.0W
Yes , 90.0W
Charge cycles
1000 cycles
1200 cycles
Runtime
~ 105h
~ 52h
Features
Non-removable
Bypass Charging, Wireless charging, Reverse charging, Non-removable
Wireless charging
40W Wireless charging

Storage

Capacity
512 GB
512 GB
Type
UFS Storage 4.0
UFS Storage 4.1
SD slot
Yes , Independent SD slot
No

Body

Dimensions
85.4 mm 174.3 mm 23.9 mm Print 3D Model
71.9 mm 151.0 mm 7.9 mm Print 3D Model
Weight
538 g
190 g
Materials
Polycarbonate
Glass , Aluminium
Colors
Black
Black Blue Violet Pale Pink
Water/dust resistance
IP68, MIL-STD-810H
IP68
Drop resistance
Class A B C D E 90 drops without defects
Class A B C D E 180 drops without defects
Repairability
Class A B C D E
Class A B C D E
Usable surface
75 %
89 %

Software

Operating system
Android 15 Android 15
Android 16 OriginOS 6 (Android 16)
Google services
With Google Mobile Services
With Google Mobile Services

Connectivity

SIM
Dual SIM Dual Standby (Nano SIM + Nano SIM)
Dual SIM Dual Standby (Nano SIM + Nano SIM / eSIM)
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), 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), n2 (1900 PCS), n3 (1800), n5 (850), n7 (2600), n8 (900), n20 (800), n25 (1900), n26 (850), n28b (700), n28a (700), n38 (2600), n40 (2300), n41 (2500), n66 (1700), n75 (1500), 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), 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), B38 (TDD 2600), B39 (TDD 1900), B40 (TDD 2300), B41 (TDD 2500), B42 (TDD 3500), 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
Proximity
Yes
Yes
Light sensor
Yes
Yes
Barometer
Yes
Compass
Yes
Cooling system
No
Yes
Audio
Noise cancellation microphone, 2 microphones
Hi-Res Audio, Noise cancellation microphone, Stereo Speakers, 2 microphones

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