Screen size
Joy Plus4.0"
K15xWinner: 6.8"+41%
Quick verdict
K15x leads the measured specs 17-2.
Measured wins
Joy Plus
2
spec wins
Ties
3
equal specs
K15x
17
spec wins
Overall winner
Screen size
Technology
Joy Plus
GSM / HSPA
K15x
GSM / HSPA / LTE / 5G
2G bands
Joy Plus
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
K15x
GSM 850 / 900 / 1800 / 1900
3G bands
Joy Plus
HSDPA 850 / 900 / 2100
K15x
HSDPA 850 / 900 / 2100
Speed
Joy Plus
HSPA
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
HSPA, LTE, 5G
4G bands
Joy Plus
-
K15x
1, 3, 5, 8, 28, 34, 38, 39, 40, 41
5G bands
Joy Plus
-
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
Announced
Joy Plus
2015, April. Released 2015, May
K15x
2026, October 02
Status
Joy Plus
Discontinued
K15x
Available. Released 2026, October 02
Dimensions
Joy Plus
124 x 63 x 9.9 mm (4.88 x 2.48 x 0.39 in)
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
Weight
Joy Plus
125 g (4.41 oz)
K15x
212 g (7.48 oz)
SIM
Joy Plus
Dual SIM (Mini-SIM/ Micro-SIM)
K15x
Nano-SIM + Nano-SIM
Build
Joy Plus
-
K15x
Glass front, plastic frame, plastic back
Other
Joy Plus
-
K15x
IP64 dust tight and water resistant (water splashes)
Type
Joy Plus
IPS LCD
K15x
IPS LCD, 120Hz, 1125 nits (peak)
Size
Joy Plus
4.0 inches, 45.5 cm2 (~58.3% screen-to-body ratio)
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
Resolution
Joy Plus
480 x 800 pixels, 5:3 ratio (~233 ppi density)
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
OS
Joy Plus
Android 4.4 (KitKat), ColorOS 2
K15x
Android 16, ColorOS 16
Chipset
Joy Plus
Mediatek MT6572 (28 nm)
K15x
Mediatek Dimensity 6300 (6 nm)
CPU
Joy Plus
Dual-core 1.3 GHz Cortex-A7
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Joy Plus
Mali-400
K15x
Mali-G57 MC2
Card slot
Joy Plus
microSDHC (dedicated slot)
K15x
microSDXC
Internal
Joy Plus
4GB 1GB RAM
K15x
128GB 6GB RAM, 256GB 6GB RAM
Other
Joy Plus
-
K15x
UFS 2.2
Single
Joy Plus
3.15 MP
K15x
-
Features
Joy Plus
LED flash
K15x
LED flash, HDR, panorama
Video
Joy Plus
720p
K15x
1080p@30/60fps
Dual
Joy Plus
-
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Single
Joy Plus
VGA
K15x
5 MP, f/2.2, 27mm (wide)
Video
Joy Plus
K15x
1080p@30fps
Features
Joy Plus
-
K15x
Panorama
Loudspeaker
Joy Plus
Yes
K15x
Yes
3.5mm jack
Joy Plus
Yes
K15x
Yes
WLAN
Joy Plus
Wi-Fi 802.11 b/g/n, DLNA, hotspot
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Joy Plus
4.0, A2DP, EDR
K15x
5.4, A2DP, LE, aptX HD
Positioning
Joy Plus
GPS
K15x
GPS, GALILEO, GLONASS, QZSS
NFC
Joy Plus
No
K15x
Yes
Radio
Joy Plus
FM radio
K15x
No
USB
Joy Plus
microUSB 2.0
K15x
USB Type-C 2.0, OTG
Sensors
Joy Plus
Accelerometer, proximity
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
Joy Plus
Li-Ion 1700 mAh, removable
K15x
6500 mAh
Charging
Joy Plus
-
K15x
45W wired 5W reverse wired
Colors
Joy Plus
White, Blue
K15x
Purple, White
Models
Joy Plus
R1011
K15x
PLT150
Price
Joy Plus
About 100 EUR
K15x
About 230 EUR