Oppo A6x 4G vs Unihertz 8849 Tank X

Oppo A6x 4G
Oppo
A6x 4G
Unihertz 8849 Tank X
Unihertz
8849 Tank X

At a glance

Brand
Oppo
Unihertz
Release date
December 2025, 6 months ago
February 2026, 4 months ago
AnTuTu
347.480 Antutu v10 Overall performance better than 63% of devices
885.456 Antutu v10 Overall performance better than 83% of devices

Display

Size
6.75"
6.78"
Resolution
720 x 1570 px HD+
1080 x 2460 px FHD+
Type
PLS
LCD IPS
Density
256 ppi Medium Density
396 ppi High Density
Aspect ratio
20:9
21:9
Features
Hole-punch Notch, Refresh rate 120 Hz, Brightnes 800 cd/m² (typ), Max brightness HBM - 1100 cd/m², HDR10+, DCI-P3, sRGB standard, 2.5D curved glass screen, Capacitive, Multi-touch, Frameless
Hole-punch Notch, Youji Glass - 1.1 mm, Refresh rate 120 Hz, Peak brightness - 750 cd/m², Scratch resistant, Capacitive, Multi-touch, In-cell

Performance

Chipset
Qualcomm Snapdragon 685 (SM6225)
MediaTek Dimensity 8200 (MT6896)
CPU
4x2.8 GHz Cortex A73 + 4x1.9GHz Cortex A53
1x Cortex A78 3.1 GHz + 3x Cortex A78 3.0 GHz + 4x Cortex A55 2.0 GHz
CPU type
Octa-Core
Octa-Core
Process
6 nm
4 nm
Frequency
2.8 GHz
3.1 GHz
GPU
Adreno 610
Arm Mali-G610 MC6
RAM
4 GB
16 GB
RAM type
LPDDR4X RAM
RAM LPDDR5
64-bit
Yes
Yes

Rear camera

Resolution
13 Mpx
50 Mpx
Aperture
ƒ/ 2.0
ƒ/ 1.88
Flash
LED
Dual LED
Optical stabilization
No
No
Slow motion
Yes, 120 fps
No, 30 fps
Features
Digital zoom, Dual camera, Autofocus, Touch focus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, Front Flash
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
Sensor
Sony IMX766
Pixel size
1.00 µm
Sensor size
1/1.56"

Front camera

Resolution
5 Mpx
50 Mpx
Aperture
ƒ/ 2.2
ƒ/ 2.25
Sensor
Hynix Hi-5022Q
Pixel size
0.70 µm

Battery

Capacity
6500 mAh
17600 mAh
Type
Li-Ion
Li-Polymer
Fast charge
Yes
Yes , 66.0W
Charge cycles
1600 cycles
Runtime
~ 68h
Features
Non-removable
Non-removable

Storage

Capacity
64 GB
256 GB
Type
UFS Storage 2.2
UFS Storage 3.1
SD slot
Yes , Slot for SD or second SIM card
Yes , Independent SD slot

Body

Dimensions
78.5 mm 166.6 mm 8.6 mm Print 3D Model
86.0 mm 179.0 mm 25.0 mm Print 3D Model
Weight
210 g
750 g
Materials
Plastic , Splash resistant design
Polycarbonate
Colors
Blue Violet
Black
Water/dust resistance
IP64
IP68, MIL-STD-810H
Drop resistance
Class A B C D E 270 drops without defects
Repairability
Class A B C D E
Usable surface
85 %
71 %

Software

Operating system
Android 15 ColorOS 15 (Android 15)
Android 15 Android 15
Updates
OS updates: 5 years
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)
Bluetooth
Bluetooth 5.0 LELow energy consumption
Bluetooth 5.3 LELow energy consumption
Bluetooth profiles
A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), LE (Low Energy), APT-x, SBC, AAC
A2DP (Advanced Audio Distribution Profile), EDR (Enhanced Data Rate), LE (Low Energy), HS
Wi-Fi
802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac
802.11a , 802.11b , 802.11g , 802.11n , 802.11n 5GHz , 802.11ac, WiFi 6 (802.11ax)
Wi-Fi features
Dual band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display
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, QZSS, Galileo
GPS, A-GPS, GLONASS, Beidou, Galileo

Networks

4G LTE
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)
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)
3G
B1 (2100), B5 (850), B8 (900)
B1 (2100), B2 (1900), B4 (1700/2100 AWS A-F), B5 (850), B6 (800), B8 (900), B19 (800)
2G
B3 (1800), B5 (850), B8 (900)
CDMA BC0 (800), CDMA BC1 (1900), B2 (1900), B3 (1800), B5 (850), B8 (900)
5G
n1 (2100), n2 (1900 PCS), n12 (700), n20 (800), n25 (1900), n28b (700), n28a (700)

Sensors & security

Fingerprint
Yes, on the side
Yes, on the side
Accelerometer
Yes
Yes
Gyroscope
Yes
Yes
Proximity
Yes
Yes
Light sensor
Yes
Yes
Cooling system
No
No
Audio
Stereo Speakers
Noise cancellation microphone, 2 microphones
Barometer
Yes
Compass
Yes

Compared with Oppo A6x 4G

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    4 GB · 6.75" · Qualcomm Snapdragon 685 (SM6225)
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Compared with Unihertz 8849 Tank X

  • Unihertz
    8849 Tank X
    16 GB · 6.78" · MediaTek Dimensity 8200 (MT6896)
    Unihertz 8849 Tank X
    Unihertz 8849 Hike
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    12 GB · 6.79" · MediaTek Helio G200
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    16 GB · 6.78" · MediaTek Dimensity 8200 (MT6896)
    Unihertz 8849 Tank X
    Unihertz 8849 Shark 5G
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    8849 Shark 5G
    12 GB · 6.79" · MediaTek Dimensity 8200 (MT6896)
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  • Unihertz
    8849 Tank X
    16 GB · 6.78" · MediaTek Dimensity 8200 (MT6896)
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    Poco X8 Pro
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    16 GB · 6.78" · MediaTek Dimensity 8200 (MT6896)
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    16 GB · 6.78" · MediaTek Dimensity 8200 (MT6896)
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    16 GB · 6.78" · MediaTek Dimensity 8200 (MT6896)
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    16 GB · 6.78" · MediaTek Dimensity 8200 (MT6896)
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  • Unihertz
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    16 GB · 6.78" · MediaTek Dimensity 8200 (MT6896)
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