Screen size
Y15a6.5"
Y21dWinner: 6.7"+2.5%
Quick verdict
Y21d leads the measured specs 11-6.
Measured wins
Y15a
6
spec wins
Ties
6
equal specs
Y21d
11
spec wins
Overall winner
Screen size
Technology
Y15a
GSM / HSPA / LTE
Y21d
GSM / HSPA / LTE
2G bands
Y15a
GSM 850 / 900 / 1800 / 1900
Y21d
GSM 850 / 900 / 1800 / 1900
3G bands
Y15a
HSDPA 850 / 900 / 2100
Y21d
HSDPA 850 / 900 / 2100
4G bands
Y15a
1, 3, 5, 8, 28, 38, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
SD card
equal specsStereo speakers
Y21d
1, 3, 5, 8, 40
Speed
Y15a
HSPA, LTE
Y21d
HSPA, LTE
Announced
Y15a
2021, November 15
Y21d
2025, October 11
Status
Y15a
Available. Released 2021, November 15
Y21d
Available. Released 2025, October
Dimensions
Y15a
164 x 75.2 x 8.3 mm (6.46 x 2.96 x 0.33 in)
Y21d
166.1 x 77 x 8.4 mm (6.54 x 3.03 x 0.33 in)
Weight
Y15a
179 g (6.31 oz)
Y21d
209 g (7.37 oz)
Build
Y15a
Glass front, plastic back, plastic frame
Y21d
Glass front, plastic back, plastic frame
SIM
Y15a
Nano-SIM + Nano-SIM
Y21d
Nano-SIM + Nano-SIM
Other
Y15a
-
Y21d
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 6m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions
Type
Y15a
IPS LCD
Y21d
IPS LCD, 90Hz, 1000 nits (HBM)
Size
Y15a
6.51 inches, 102.3 cm2 (~83.0% screen-to-body ratio)
Y21d
6.68 inches, 107.4 cm2 (~84.0% screen-to-body ratio)
Resolution
Y15a
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
Y21d
720 x 1608 pixels, 20:9 ratio (~264 ppi density)
Protection
Y15a
-
Y21d
Ion strengthened glass
OS
Y15a
Android 11, Funtouch 11.1
Y21d
Android 15, Funtouch 15
Chipset
Y15a
Mediatek MT6765 Helio P35 (12 nm)
Y21d
Unisoc T7225 (12 nm)
CPU
Y15a
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Y21d
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU
Y15a
PowerVR GE8320
Y21d
Mali-G52 MP1
Card slot
Y15a
microSDXC (dedicated slot)
Y21d
microSDXC (dedicated slot)
Internal
Y15a
64GB 4GB RAM
Y21d
128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM
Other
Y15a
eMMC 5.1
Y21d
eMMC 5.1
Dual
Y15a
13 MP, f/2.2, 27mm (wide), AF Auxiliary lens
Y21d
-
Features
Y15a
LED flash, panorama
Y21d
Ring-LED flash, panorama
Video
Y15a
1080p@30fps
Y21d
1080p@30fps
Single
Y15a
-
Y21d
50 MP, f/1.8, (wide), PDAF Auxiliary lens
Single
Y15a
8 MP, f/2.0
Y21d
5 MP, f/2.2
Video
Y15a
1080p@30fps
Y21d
Yes
Loudspeaker
Y15a
Yes
Y21d
Yes, with stereo speakers
3.5mm jack
Y15a
Yes
Y21d
No
Other
Y15a
-
Y21d
24-bit/192kHz Hi-Res audio
WLAN
Y15a
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Y21d
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Y15a
5.0, A2DP, LE
Y21d
5.2, A2DP, LE
Positioning
Y15a
GPS, GLONASS, GALILEO, BDS
Y21d
GPS, GLONASS, GALILEO, BDS, QZSS
NFC
Y15a
No
Y21d
No
Radio
Y15a
FM radio
Y21d
FM radio
USB
Y15a
microUSB 2.0, OTG
Y21d
USB Type-C 2.0, OTG
Sensors
Y15a
Fingerprint (side-mounted), accelerometer, proximity, compass
Y21d
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
Y15a
5000 mAh
Y21d
Si/C Li-Ion 6500 mAh
Charging
Y15a
10W wired 5W reverse wired
Y21d
44W wired, 50% in 40 min Reverse wired
Colors
Y15a
Wave Green, Mystic Blue
Y21d
Lavender Purple, Black
Models
Y15a
V2134
Y21d
-
Price
Y15a
About 140 EUR
Y21d
About 100 EUR