Screen size
X51 5G6.6"
Y600iWinner: 6.9"+4.5%
Quick verdict
X51 5G and Y600i are close on the measured specs.
Measured wins
X51 5G
9
spec wins
Ties
4
equal specs
Y600i
9
spec wins
Screen size
Technology
X51 5G
GSM / CDMA / HSPA / LTE / 5G
Y600i
GSM / HSPA / LTE / 5G
2G bands
X51 5G
GSM 850 / 900 / 1800 / 1900 , CDMA 800
Y600i
GSM 850 / 900 / 1800 / 1900
3G bands
X51 5G
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Y600i
HSDPA 800 / 850 / 900 / 2100
4G bands
X51 5G
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
Y600i
1, 3, 4, 5, 8, 19, 28, 34, 38, 39, 40, 41, 66
5G bands
X51 5G
1, 3, 7, 8, 28, 38, 41, 77, 78 SA/NSA
Y600i
1, 3, 5, 8, 28, 38, 40, 41, 66, 77, 78 SA/NSA
Speed
X51 5G
HSPA, LTE, 5G
Y600i
HSPA, LTE, 5G
Announced
X51 5G
2020, October 21. Released 2020, October 23
Y600i
2026, September 25
Status
X51 5G
Discontinued
Y600i
Released Sep 30, 2026
Dimensions
X51 5G
158.5 x 72.8 x 8 mm (6.24 x 2.87 x 0.31 in)
Y600i
169.6 x 79.2 x 8.7 mm (6.68 x 3.12 x 0.34 in)
Weight
X51 5G
181.5 g (6.42 oz)
Y600i
229 g (8.08 oz)
Build
X51 5G
Glass front, glass back, aluminum frame
Y600i
Glass front, plastic frame, plastic back
SIM
X51 5G
Nano-SIM + Nano-SIM
Y600i
Nano-SIM + Nano-SIM
Other
X51 5G
-
Y600i
IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) Drop resistant 1.4m
Type
X51 5G
AMOLED, 90Hz, HDR10+
Y600i
IPS LCD, 120Hz, 1000 nits (HBM), 1300 nits (peak)
Size
X51 5G
6.56 inches, 104.6 cm2 (~90.6% screen-to-body ratio)
Y600i
6.87 inches, 114.3 cm2 (~85.1% screen-to-body ratio)
Resolution
X51 5G
1080 x 2376 pixels (~398 ppi density)
Y600i
720 x 1592 pixels (~254 ppi density)
Protection
X51 5G
-
Y600i
Diamond Shield Glass
OS
X51 5G
Android 10, Funtouch 10.0
Y600i
Android 16, OriginOS 6
Chipset
X51 5G
Qualcomm SM7250 Snapdragon 765G 5G (7 nm)
Y600i
Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)
CPU
X51 5G
Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
Y600i
Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55)
GPU
X51 5G
Adreno 620
Y600i
Adreno 613
Card slot
X51 5G
No
Y600i
microSDXC
Internal
X51 5G
256GB 8GB RAM
Y600i
256GB 6GB RAM
Other
X51 5G
UFS 2.1
Y600i
UFS 2.2
Quad
X51 5G
48 MP, f/1.6, (wide), PDAF, gimbal OIS 8 MP, f/3.4, 135mm (periscope telephoto), 1/4.0", PDAF, OIS, 5x optical zoom 13 MP, f/2.5, 50mm (telephoto), 1/2.8", 0.8µm, PDAF, 2x optical zoom 8 MP, f/2.2, 120˚, 16mm (ultrawide), 1/4.0", 1.12µm
Y600i
-
Features
X51 5G
Laser AF, color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama
Y600i
LED flash, HDR, panorama
Video
X51 5G
4K@30fps, 1080p@30fps, gyro-EIS
Y600i
1080p@30fps
Single
X51 5G
-
Y600i
50 MP, f/1.8, (wide), PDAF
Single
X51 5G
32 MP, f/2.5, 26mm (wide), 1/2.8", 0.8µm
Y600i
8 MP, f/2.1, (wide)
Features
X51 5G
HDR
Y600i
-
Video
X51 5G
1080p@30fps
Y600i
1080p@30fps
Loudspeaker
X51 5G
Yes
Y600i
Yes
3.5mm jack
X51 5G
No
Y600i
No
Other
X51 5G
32-bit/192kHz Hi-Res audio
Y600i
-
WLAN
X51 5G
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Y600i
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
X51 5G
5.1, A2DP, LE, aptX HD
Y600i
5.1, A2DP, aptX Adaptive
Positioning
X51 5G
GPS, GLONASS, GALILEO, BDS
Y600i
GPS, GALILEO, GLONASS, BDS, QZSS
NFC
X51 5G
Yes
Y600i
No
Radio
X51 5G
No
Y600i
No
USB
X51 5G
USB Type-C 2.0, OTG
Y600i
USB Type-C 2.0, OTG
Infrared port
X51 5G
-
Y600i
Yes
Sensors
X51 5G
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Y600i
Fingerprint (side-mounted), accelerometer, proximity, compass
Type
X51 5G
4315 mAh
Y600i
Si/C Li-Ion 8000 mAh
Charging
X51 5G
33W wired, 57% in 30 min
Y600i
44W wired Reverse wired
Colors
X51 5G
Gray
Y600i
Black, Blue, White
Models
X51 5G
XE710
Y600i
V2617A
Price
X51 5G
About 760 EUR
Y600i
About 260 EUR