Screen size
K15xWinner: 6.8"+41%
R1001 Joy4.0"
Quick verdict
K15x leads the measured specs 17-2.
Measured wins
K15x
17
spec wins
Overall winner
Ties
3
equal specs
R1001 Joy
2
spec wins
Screen size
Technology
K15x
GSM / HSPA / LTE / 5G
R1001 Joy
GSM / HSPA
2G bands
K15x
GSM 850 / 900 / 1800 / 1900
R1001 Joy
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
K15x
HSDPA 850 / 900 / 2100
R1001 Joy
HSDPA 2100
4G bands
K15x
1, 3, 5, 8, 28, 34, 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
R1001 Joy
-
5G bands
K15x
1, 3, 5, 8, 28, 41, 48, 77, 78 SA/NSA
R1001 Joy
-
Speed
K15x
HSPA, LTE, 5G
R1001 Joy
HSPA
Announced
K15x
2026, October 02
R1001 Joy
2014, May. Released 2014, May
Status
K15x
Available. Released 2026, October 02
R1001 Joy
Discontinued
Dimensions
K15x
166.6 x 78.5 x 8.6 mm (6.56 x 3.09 x 0.34 in)
R1001 Joy
124 x 63 x 9.9 mm (4.88 x 2.48 x 0.39 in)
Weight
K15x
212 g (7.48 oz)
R1001 Joy
125 g (4.41 oz)
Build
K15x
Glass front, plastic frame, plastic back
R1001 Joy
-
SIM
K15x
Nano-SIM + Nano-SIM
R1001 Joy
Dual SIM (Mini-SIM/ Micro-SIM)
Other
K15x
IP64 dust tight and water resistant (water splashes)
R1001 Joy
-
Type
K15x
IPS LCD, 120Hz, 1125 nits (peak)
R1001 Joy
TFT
Size
K15x
6.75 inches, 111.4 cm2 (~85.2% screen-to-body ratio)
R1001 Joy
4.0 inches, 45.5 cm2 (~58.3% screen-to-body ratio)
Resolution
K15x
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
R1001 Joy
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
K15x
Android 16, ColorOS 16
R1001 Joy
Android 4.2.1 (Jelly Bean)
Chipset
K15x
Mediatek Dimensity 6300 (6 nm)
R1001 Joy
Mediatek MT6572 (28 nm)
CPU
K15x
Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
R1001 Joy
Dual-core 1.3 GHz Cortex-A7
GPU
K15x
Mali-G57 MC2
R1001 Joy
Mali-400
Card slot
K15x
microSDXC
R1001 Joy
microSDHC (dedicated slot)
Internal
K15x
128GB 6GB RAM, 256GB 6GB RAM
R1001 Joy
4GB 512MB RAM
Other
K15x
UFS 2.2
R1001 Joy
-
Dual
K15x
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
R1001 Joy
-
Features
K15x
LED flash, HDR, panorama
R1001 Joy
LED flash
Video
K15x
1080p@30/60fps
R1001 Joy
720p@30fps
Single
K15x
-
R1001 Joy
3.15 MP
Single
K15x
5 MP, f/2.2, 27mm (wide)
R1001 Joy
VGA
Features
K15x
Panorama
R1001 Joy
-
Video
K15x
1080p@30fps
R1001 Joy
Loudspeaker
K15x
Yes
R1001 Joy
Yes
3.5mm jack
K15x
Yes
R1001 Joy
Yes
WLAN
K15x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
R1001 Joy
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth
K15x
5.4, A2DP, LE, aptX HD
R1001 Joy
4.0, A2DP
Positioning
K15x
GPS, GALILEO, GLONASS, QZSS
R1001 Joy
GPS
NFC
K15x
Yes
R1001 Joy
No
Radio
K15x
No
R1001 Joy
FM radio
USB
K15x
USB Type-C 2.0, OTG
R1001 Joy
microUSB 2.0
Sensors
K15x
Fingerprint (side-mounted), accelerometer, proximity, compass
R1001 Joy
Accelerometer, proximity
Type
K15x
6500 mAh
R1001 Joy
Li-Ion 1700 mAh, removable
Charging
K15x
45W wired 5W reverse wired
R1001 Joy
-
Stand-by
K15x
-
R1001 Joy
Up to 280 h
Talk time
K15x
-
R1001 Joy
Up to 7 h
Colors
K15x
Purple, White
R1001 Joy
White, Black
Models
K15x
PLT150
R1001 Joy
R1001
Price
K15x
About 230 EUR
R1001 Joy
About 100 EUR