Screen size
A6 4GWinner: 6.8"+4.7%
F21 Pro6.4"
Quick verdict
A6 4G and F21 Pro are close on the measured specs.
Measured wins
A6 4G
9
spec wins
Ties
4
equal specs
F21 Pro
9
spec wins
Screen size
Technology
A6 4G
GSM / HSPA / LTE
F21 Pro
GSM / HSPA / LTE
2G bands
A6 4G
GSM 850 / 900 / 1800 / 1900
F21 Pro
GSM 850 / 900 / 1800 / 1900
3G bands
A6 4G
HSDPA 850 / 900 / 2100 - version 1, HSDPA 900 / 2100 - version 2
F21 Pro
HSDPA 850 / 900 / 2100
4G bands
A6 4G
1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - version 1, 1, 3, 5, 8, 40 - version 2
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
F21 Pro
1, 3, 5, 8, 38, 40, 41
Speed
A6 4G
HSPA, LTE
F21 Pro
HSPA, LTE
Announced
A6 4G
2026, January 13
F21 Pro
2022, April 12
Status
A6 4G
Available. Released 2026, January 13
F21 Pro
Available. Released 2022, April 15
Dimensions
A6 4G
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
F21 Pro
159.9 x 73.2 x 7.5 mm (6.30 x 2.88 x 0.30 in)
Weight
A6 4G
215 g (7.58 oz)
F21 Pro
175 g (6.17 oz)
Build
A6 4G
Glass front, plastic frame, plastic back
F21 Pro
-
SIM
A6 4G
Nano-SIM + Nano-SIM
F21 Pro
Nano-SIM + Nano-SIM
Other
A6 4G
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
F21 Pro
IPX4 water resistant RGB ring light around the camera (notifications, charging progress)
Type
A6 4G
IPS LCD, 120Hz, 1125 nits (peak)
F21 Pro
AMOLED, 90Hz, 430 nits (typ), 600 nits (HBM), 800 nits (peak)
Size
A6 4G
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
F21 Pro
6.43 inches, 99.8 cm2 (~85.3% screen-to-body ratio)
Resolution
A6 4G
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
F21 Pro
1080 x 2400 pixels, 20:9 ratio (~409 ppi density)
Protection
A6 4G
-
F21 Pro
Corning Gorilla Glass 5
OS
A6 4G
Android 15, ColorOS 15
F21 Pro
Android 12, upgradable to Android 14, ColorOS 14
Chipset
A6 4G
Qualcomm SM6225 Snapdragon 685 (6 nm)
F21 Pro
Qualcomm SM6225 Snapdragon 680 4G (6 nm)
CPU
A6 4G
Octa-core (4x2.8 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53)
F21 Pro
Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver)
GPU
A6 4G
Adreno 610
F21 Pro
Adreno 610
Card slot
A6 4G
microSDXC
F21 Pro
microSDXC
Internal
A6 4G
128GB 6GB RAM, 128GB 8GB RAM, 256GB 4GB RAM, 256GB 6GB RAM, 256GB 8GB RAM
F21 Pro
128GB 8GB RAM
Other
A6 4G
UFS 2.2
F21 Pro
UFS 2.2
Dual
A6 4G
50 MP, f/1.8, (wide), PDAF Auxiliary lens
F21 Pro
-
Features
A6 4G
LED flash, HDR, panorama
F21 Pro
LED flash, HDR, panorama
Video
A6 4G
1080p@30fps
F21 Pro
1080p@30fps, gyro-EIS
Triple
A6 4G
-
F21 Pro
64 MP, f/1.7, 26mm (wide), 1/2.0", 0.7µm, PDAF 2 MP, f/3.3, (microscope) Auxiliary lens
Single
A6 4G
8 MP, f/2.0, (wide)
F21 Pro
32 MP, f/2.4, 24mm (wide), 1/2.74", 0.8µm
Features
A6 4G
Panorama
F21 Pro
Panorama, HDR
Video
A6 4G
1080p@30fps
F21 Pro
1080p@30fps, gyro-EIS
Loudspeaker
A6 4G
Yes, with stereo speakers
F21 Pro
Yes
3.5mm jack
A6 4G
No
F21 Pro
Yes
WLAN
A6 4G
Wi-Fi 802.11 a/b/g/n/ac, dual-band
F21 Pro
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
A6 4G
5.0, A2DP, LE, aptX
F21 Pro
5.1, A2DP, LE, aptX HD
Positioning
A6 4G
GPS, GALILEO, GLONASS, QZSS
F21 Pro
GPS, GLONASS, BDS, GALILEO, QZSS
NFC
A6 4G
Yes (market/region dependent)
F21 Pro
No
Radio
A6 4G
Unspecified
F21 Pro
No
USB
A6 4G
USB Type-C 2.0, OTG
F21 Pro
USB Type-C 2.0, OTG
Sensors
A6 4G
Fingerprint (side-mounted), accelerometer, proximity, compass
F21 Pro
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
A6 4G
Si/C Li-Ion 7000 mAh
F21 Pro
Li-Po 4500 mAh
Charging
A6 4G
45W wired, 33W PPS, 13.5W PD, 36% in 30 min 5W reverse wired
F21 Pro
33W wired, 100% in 60 min Reverse wired
Colors
A6 4G
Sapphire Blue, Aurora Gold
F21 Pro
Cosmic Black, Sunset Orange, Dawnlight Gold, Starlight Black
Models
A6 4G
CPH2817
F21 Pro
CPH2363, CPH2461
Price
A6 4G
-
F21 Pro
About 280 EUR