Screen size
Y500iWinner: 6.8"+2.5%
Y51a6.6"
Quick verdict
Y500i leads the measured specs 12-7.
Measured wins
Y500i
12
spec wins
Overall winner
Ties
3
equal specs
Y51a
7
spec wins
Screen size
Technology
Y500i
GSM / CDMA / HSPA / LTE / 5G
Y51a
GSM / HSPA / LTE
2G bands
Y500i
GSM 850 / 900 / 1800 / 1900 , CDMA 800
Y51a
GSM 850 / 900 / 1800 / 1900
3G bands
Y500i
HSDPA 850 / 900 / 2100
Y51a
HSDPA 850 / 900 / 2100
4G bands
Y500i
1, 3, 5, 8, 28, 34, 38, 39, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
equal specsIP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
NFC
3.5mm jack
SD card
Stereo speakers
Y51a
1, 3, 5, 8, 40
5G bands
Y500i
1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
Y51a
-
Speed
Y500i
HSPA, LTE, 5G
Y51a
HSPA, LTE
Announced
Y500i
2026, January 12
Y51a
2021, January 08
Status
Y500i
Available. Released 2026, January 16
Y51a
Available. Released 2021, January 23
Dimensions
Y500i
166.6 x 78.4 x 8.4 mm (6.56 x 3.09 x 0.33 in)
Y51a
163.9 x 75.3 x 8.4 mm (6.45 x 2.96 x 0.33 in)
Weight
Y500i
219 g (7.72 oz)
Y51a
188 g (6.63 oz)
Build
Y500i
Glass front, plastic frame, plastic back
Y51a
-
SIM
Y500i
Nano-SIM + Nano-SIM
Y51a
Nano-SIM + Nano-SIM
Other
Y500i
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)
Y51a
-
Type
Y500i
IPS LCD, 120Hz, 1000 nits (HBM), 1200 nits (peak)
Y51a
IPS LCD
Size
Y500i
6.75 inches, 111.4 cm2 (~85.3% screen-to-body ratio)
Y51a
6.58 inches, 104.3 cm2 (~84.5% screen-to-body ratio)
Resolution
Y500i
720 x 1570 pixels, 19.5:9 ratio (~256 ppi density)
Y51a
1080 x 2408 pixels, 20:9 ratio (~401 ppi density)
OS
Y500i
Android 16, OriginOS 6
Y51a
Android 11, upgradable to Android 12, Funtouch 12
Chipset
Y500i
Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)
Y51a
Qualcomm SM6115 Snapdragon 662 (11 nm)
CPU
Y500i
Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55)
Y51a
Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU
Y500i
Adreno 613
Y51a
Adreno 610
Card slot
Y500i
No
Y51a
microSDXC (dedicated slot)
Internal
Y500i
128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM, 512GB 8GB RAM, 512GB 12GB RAM
Y51a
128GB 6GB RAM, 128GB 8GB RAM
Other
Y500i
UFS 3.1
Y51a
-
Single
Y500i
50 MP, f/1.8, (wide), PDAF
Y51a
-
Features
Y500i
LED flash, HDR, panorama
Y51a
LED flash, HDR, panorama
Video
Y500i
1080p@30fps
Y51a
4K@30fps, 1080p@30fps, gyro-EIS
Triple
Y500i
-
Y51a
48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚, (ultrawide), 1/4.0", 1.12µm 2 MP (macro)
Single
Y500i
5 MP, f/2.0, (wide)
Y51a
16 MP, f/2.0, (wide), 1/3.06" 1.0µm
Video
Y500i
1080p@30fps
Y51a
1080p@30fps
Features
Y500i
-
Y51a
HDR
Loudspeaker
Y500i
Yes, with stereo speakers
Y51a
Yes
3.5mm jack
Y500i
No
Y51a
Yes
WLAN
Y500i
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Y51a
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
Y500i
4.2, A2DP, aptX Adaptive
Y51a
5.0, A2DP, LE
Positioning
Y500i
GPS, GALILEO, GLONASS, BDS, QZSS
Y51a
GPS, GLONASS, GALILEO, BDS
NFC
Y500i
Yes
Y51a
No
Infrared port
Y500i
Yes
Y51a
-
Radio
Y500i
No
Y51a
FM radio
USB
Y500i
USB Type-C 2.0, OTG
Y51a
USB Type-C 2.0, OTG
Sensors
Y500i
Fingerprint (side-mounted), accelerometer, proximity, compass
Y51a
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Type
Y500i
Si/C Li-Ion 7200 mAh
Y51a
5000 mAh
Charging
Y500i
44W wired Reverse wired
Y51a
18W wired, 70% in 67 min
Colors
Y500i
Black, Silver, Gold
Y51a
Titanium Sapphire, Crystal Symphony
Models
Y500i
V2531A
Y51a
V2031
Price
Y500i
About 180 EUR
Y51a
About 200 EUR
SAR
Y500i
-
Y51a
0.87 W/kg (head) 0.39 W/kg (body)