Screen size
F9 (F9 Pro)6.3"
K15xWinner: 6.8"+6.7%
Quick verdict
K15x leads the measured specs 13-6.
Measured wins
F9 (F9 Pro)
6
spec wins
Ties
3
equal specs
K15x
13
spec wins
Overall winner
Screen size
Technology
F9 (F9 Pro)
GSM / HSPA / LTE
K15x
GSM / HSPA / LTE / 5G
2G bands
F9 (F9 Pro)
GSM 850 / 900 / 1800 / 1900
K15x
GSM 850 / 900 / 1800 / 1900
3G bands
F9 (F9 Pro)
HSDPA 850 / 900 / 2100 - all versions
K15x
HSDPA 850 / 900 / 2100
4G bands
F9 (F9 Pro)
1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 1, 3, 5, 7, 8, 38, 40, 41, 1, 3, 5, 8, 38, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
NFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
K15x
1, 3, 5, 8, 28, 34, 38, 39, 40, 41
Speed
F9 (F9 Pro)
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat13 600/100 Mbps
K15x
HSPA, LTE, 5G
5G bands
F9 (F9 Pro)
-
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
Announced
F9 (F9 Pro)
2018, August. Released 2018, August
K15x
2026, October 02
Status
F9 (F9 Pro)
Discontinued
K15x
Available. Released 2026, October 02
Dimensions
F9 (F9 Pro)
156.7 x 74 x 8 mm (6.17 x 2.91 x 0.31 in)
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Weight
F9 (F9 Pro)
169 g (5.96 oz)
K15x
212 g (7.48 oz)
Build
F9 (F9 Pro)
Glass front (Gorilla Glass 6), aluminum back, plastic frame
K15x
Glass front, plastic frame, plastic back
SIM
F9 (F9 Pro)
Nano-SIM + Nano-SIM
K15x
Nano-SIM + Nano-SIM
Other
F9 (F9 Pro)
-
K15x
IP64 dust tight and water resistant (water splashes)
Type
F9 (F9 Pro)
IPS LCD
K15x
IPS LCD, 120Hz, 1125 nits (peak)
Size
F9 (F9 Pro)
6.3 inches, 97.4 cm2 (~84.0% screen-to-body ratio)
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Resolution
F9 (F9 Pro)
1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density)
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Protection
F9 (F9 Pro)
Corning Gorilla Glass 6
K15x
-
OS
F9 (F9 Pro)
Android 8.1 (Oreo), upgradable to Android 10, ColorOS 7.0
K15x
Android 16, ColorOS 16
Chipset
F9 (F9 Pro)
Mediatek MT6771 Helio P60 (12 nm)
K15x
Mediatek Dimensity 6300 (6 nm)
CPU
F9 (F9 Pro)
Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
F9 (F9 Pro)
Mali-G72 MP3
K15x
Mali-G57 MC2
Card slot
F9 (F9 Pro)
microSDXC (dedicated slot)
K15x
microSDXC
Internal
F9 (F9 Pro)
64GB 4GB RAM, 64GB 6GB RAM, 128GB 6GB RAM
K15x
128GB 6GB RAM, 256GB 6GB RAM
Other
F9 (F9 Pro)
eMMC 5.1
K15x
UFS 2.2
Dual
F9 (F9 Pro)
16 MP, f/1.8, 1/3.1, 1.0µm, PDAF Auxiliary lens
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Features
F9 (F9 Pro)
LED flash, HDR, panorama
K15x
LED flash, HDR, panorama
Video
F9 (F9 Pro)
1080p@30fps
K15x
1080p@30/60fps
Single
F9 (F9 Pro)
25 MP, f/2.0, 26mm (wide), 1/2.8", 0.9µm
K15x
5 MP, f/2.2, 27mm (wide)
Video
F9 (F9 Pro)
1080p@30fps
K15x
1080p@30fps
Features
F9 (F9 Pro)
-
K15x
Panorama
Loudspeaker
F9 (F9 Pro)
Yes
K15x
Yes
3.5mm jack
F9 (F9 Pro)
Yes
K15x
Yes
WLAN
F9 (F9 Pro)
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
F9 (F9 Pro)
4.2, A2DP, LE
K15x
5.4, A2DP, LE, aptX HD
Positioning
F9 (F9 Pro)
GPS, GLONASS, BDS
K15x
GPS, GALILEO, GLONASS, QZSS
NFC
F9 (F9 Pro)
No
K15x
Yes
Radio
F9 (F9 Pro)
FM radio
K15x
No
USB
F9 (F9 Pro)
microUSB 2.0, OTG
K15x
USB Type-C 2.0, OTG
Sensors
F9 (F9 Pro)
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
F9 (F9 Pro)
Li-Po 3500 mAh, non-removable
K15x
6500 mAh
Charging
F9 (F9 Pro)
20W wired
K15x
45W wired 5W reverse wired
Colors
F9 (F9 Pro)
Sunrise Red, Twilight Blue, Starry Purple, Jade Green
K15x
Purple, White
Models
F9 (F9 Pro)
CPH1823, CPH1881, CPH1825
K15x
PLT150
Price
F9 (F9 Pro)
About 290 EUR
K15x
About 230 EUR