Screen size
F3 Plus6.0"
K15xWinner: 6.8"+11%
Quick verdict
K15x leads the measured specs 13-6.
Measured wins
F3 Plus
6
spec wins
Ties
3
equal specs
K15x
13
spec wins
Overall winner
Screen size
Technology
F3 Plus
GSM / HSPA / LTE
K15x
GSM / HSPA / LTE / 5G
2G bands
F3 Plus
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
K15x
GSM 850 / 900 / 1800 / 1900
3G bands
F3 Plus
HSDPA 850 / 900 / 1700 / 1900 / 2100
K15x
HSDPA 850 / 900 / 2100
4G bands
F3 Plus
1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 39, 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
F3 Plus
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
K15x
HSPA, LTE, 5G
5G bands
F3 Plus
-
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
Announced
F3 Plus
2017, March. Released 2017, April
K15x
2026, October 02
Status
F3 Plus
Discontinued
K15x
Available. Released 2026, October 02
Dimensions
F3 Plus
163.6 x 80.8 x 7.4 mm (6.44 x 3.18 x 0.29 in)
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Weight
F3 Plus
185 g (6.53 oz)
K15x
212 g (7.48 oz)
Build
F3 Plus
Glass front (Gorilla Glass 5), aluminum back, aluminum frame
K15x
Glass front, plastic frame, plastic back
SIM
F3 Plus
Nano-SIM + Nano-SIM
K15x
Nano-SIM + Nano-SIM
Other
F3 Plus
-
K15x
IP64 dust tight and water resistant (water splashes)
Type
F3 Plus
IPS LCD
K15x
IPS LCD, 120Hz, 1125 nits (peak)
Size
F3 Plus
6.0 inches, 99.2 cm2 (~75.1% screen-to-body ratio)
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Resolution
F3 Plus
1080 x 1920 pixels, 16:9 ratio (~367 ppi density)
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Protection
F3 Plus
Corning Gorilla Glass 5
K15x
-
OS
F3 Plus
Android 6 (Marshmallow), ColorOS 3
K15x
Android 16, ColorOS 16
Chipset
F3 Plus
Qualcomm MSM8976 Pro Snapdragon 653 (28 nm)
K15x
Mediatek Dimensity 6300 (6 nm)
CPU
F3 Plus
Octa-core (4x1.95 GHz Cortex-A72 & 4x1.44 GHz Cortex-A53)
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
F3 Plus
Adreno 510
K15x
Mali-G57 MC2
Card slot
F3 Plus
microSDXC (uses shared SIM slot)
K15x
microSDXC
Internal
F3 Plus
64GB 4GB RAM, 64GB 6GB RAM
K15x
128GB 6GB RAM, 256GB 6GB RAM
Other
F3 Plus
eMMC 5.1
K15x
UFS 2.2
Single
F3 Plus
16 MP, f/1.7, 1/2.8", PDAF, OIS
K15x
-
Features
F3 Plus
Dual-LED dual-tone flash, HDR, panorama
K15x
LED flash, HDR, panorama
Video
F3 Plus
4K@30fps, 1080p@30fps
K15x
1080p@30/60fps
Dual
F3 Plus
-
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Dual
F3 Plus
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm 8 MP
K15x
-
Video
F3 Plus
1080p@30fps
K15x
1080p@30fps
Single
F3 Plus
-
K15x
5 MP, f/2.2, 27mm (wide)
Features
F3 Plus
-
K15x
Panorama
Loudspeaker
F3 Plus
Yes
K15x
Yes
3.5mm jack
F3 Plus
Yes
K15x
Yes
WLAN
F3 Plus
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
F3 Plus
4.1, A2DP, LE
K15x
5.4, A2DP, LE, aptX HD
Positioning
F3 Plus
GPS
K15x
GPS, GALILEO, GLONASS, QZSS
NFC
F3 Plus
No
K15x
Yes
Radio
F3 Plus
No
K15x
No
USB
F3 Plus
microUSB 2.0, OTG
K15x
USB Type-C 2.0, OTG
Sensors
F3 Plus
Fingerprint (front-mounted), accelerometer, gyro, proximity, compass
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
F3 Plus
Li-Ion 4000 mAh, non-removable
K15x
6500 mAh
Charging
F3 Plus
20W wired
K15x
45W wired 5W reverse wired
Colors
F3 Plus
Pink, Gold
K15x
Purple, White
Models
F3 Plus
CPH1613
K15x
PLT150
Price
F3 Plus
About 480 EUR
K15x
About 230 EUR