Screen size
F33 Pro6.6"
K12x (China)Winner: 6.7"+1.5%
Quick verdict
F33 Pro and K12x (China) are close on the measured specs.
Measured wins
F33 Pro
7
spec wins
Ties
9
equal specs
K12x (China)
7
spec wins
Screen size
Technology
F33 Pro
GSM / HSPA / LTE / 5G
K12x (China)
GSM / CDMA / HSPA / LTE / 5G
2G bands
F33 Pro
GSM 850 / 900 / 1800 / 1900
K12x (China)
GSM 850 / 900 / 1800 / 1900 , CDMA 800
3G bands
F33 Pro
HSDPA 900 / 2100
K12x (China)
HSDPA 850 / 1700(AWS) / 1900 / 2100
4G bands
F33 Pro
1, 3, 5, 8, 19, 28, 38, 40, 41, 42, 48
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
equal specsFront camera
Battery
Wired charging
equal specsWeight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
SD card
equal specsStereo speakers
K12x (China)
1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41
5G bands
F33 Pro
1, 3, 5, 8, 28, 38, 40, 41, 48, 77, 78 SA/NSA
K12x (China)
1, 5, 8, 28, 41, 77, 78 SA/NSA
Speed
F33 Pro
HSPA, LTE, 5G
K12x (China)
HSPA, LTE, 5G
Announced
F33 Pro
2026, April 15
K12x (China)
2024, March 14
Status
F33 Pro
Released Apr 26, 2026
K12x (China)
Available. Released 2024, May 20
Dimensions
F33 Pro
158.4 x 75.2 x 8.3 mm (6.24 x 2.96 x 0.33 in)
K12x (China)
162.9 x 75.6 x 8.1 mm (6.41 x 2.98 x 0.32 in)
Weight
F33 Pro
194 g (6.84 oz)
K12x (China)
191 g (6.74 oz)
Build
F33 Pro
Glass front, plastic frame, plastic back
K12x (China)
Glass front, plastic frame, plastic back
SIM
F33 Pro
Nano-SIM + Nano-SIM
K12x (China)
Nano-SIM + Nano-SIM
Other
F33 Pro
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
K12x (China)
-
Type
F33 Pro
AMOLED, 1B colors, 120Hz, 600 nits (typ), 1400 nits (HBM)
K12x (China)
OLED, 120Hz, 600 nits (typ), 1200 nits (HBM), 2100 nits (peak)
Size
F33 Pro
6.57 inches, 105.0 cm2 (~88.2% screen-to-body ratio)
K12x (China)
6.67 inches, 107.4 cm2 (~87.2% screen-to-body ratio)
Resolution
F33 Pro
1080 x 2372 pixels (~397 ppi density)
K12x (China)
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Protection
F33 Pro
Asahi Glass DT-STAR D+
K12x (China)
-
OS
F33 Pro
Android 16, ColorOS 16
K12x (China)
Android 14, ColorOS 14
Chipset
F33 Pro
Mediatek Dimensity 6360 Max (6 nm)
K12x (China)
Qualcomm SM6375 Snapdragon 695 5G (6 nm)
CPU
F33 Pro
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
K12x (China)
Octa-core (2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver)
GPU
F33 Pro
Mali-G57 MC2
K12x (China)
Adreno 619
Card slot
F33 Pro
microSDXC
K12x (China)
microSDXC (uses shared SIM slot)
Internal
F33 Pro
128GB 8GB RAM, 256GB 8GB RAM
K12x (China)
128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM
Other
F33 Pro
UFS 2.2
K12x (China)
UFS 2.2
Dual
F33 Pro
50 MP, f/1.8, (wide), PDAF Auxiliary lens
K12x (China)
50 MP, f/1.8, (wide), 1/2.76", PDAF Auxiliary lens
Features
F33 Pro
Color spectrum sensor, LED flash, HDR, panorama
K12x (China)
LED flash, HDR, panorama
Video
F33 Pro
1080p@30/60fps
K12x (China)
1080p@30fps, gyro-EIS
Single
F33 Pro
50 MP, f/2.0, 18mm (ultrawide), AF
K12x (China)
16 MP, f/2.4, (wide)
Features
F33 Pro
Panorama
K12x (China)
Panorama
Video
F33 Pro
1080p@30fps
K12x (China)
1080p@30fps
Loudspeaker
F33 Pro
Yes
K12x (China)
Yes, with stereo speakers
3.5mm jack
F33 Pro
No
K12x (China)
Yes
WLAN
F33 Pro
Wi-Fi 802.11 a/b/g/n/ac, dual-band
K12x (China)
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
F33 Pro
5.4, A2DP, LE, aptX HD
K12x (China)
Yes
Positioning
F33 Pro
GPS, GALILEO, GLONASS, BDS, QZSS
K12x (China)
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
F33 Pro
No
K12x (China)
No
Radio
F33 Pro
No
K12x (China)
No
USB
F33 Pro
USB Type-C 2.0, OTG
K12x (China)
USB Type-C 2.0
Sensors
F33 Pro
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
K12x (China)
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Type
F33 Pro
Si/C Li-Ion 7000 mAh
K12x (China)
5500 mAh
Charging
F33 Pro
80W wired, 55W PPS, 13.5W PD 5W reverse wired
K12x (China)
80W wired, PD3.0, 100% in 50 min
Colors
F33 Pro
Misty Forest, Passion Red, Starry Blue
K12x (China)
Gray, Light Green
Models
F33 Pro
CPH2835
K12x (China)
PJT110
SAR
F33 Pro
1.14 W/kg (head) 0.89 W/kg (body)
K12x (China)
-
Price
F33 Pro
About 350 EUR
K12x (China)
About 170 EUR