vivo Y55 5G vs vivo iQOO 3 5G

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 32, 38, 39, 40, 41

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
5G network

5G band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 78 SA/NSA

5G band 1(2100), 3(1800), 41(2500), 77(3700), 78(3500), 79(4700); SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload

-
LTE speed

LTE-A, Cat4, 151 Mbps download, 51 Mbps upload

LTE Cat20
5G speed

-

3.3 Gbps download
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front, plastic frame, plastic back

Glass front (Gorilla Glass 6), glass back (Gorilla Glass 6), aluminum frame
SIM

Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

164 mm

158.5 mm
Width

75.9 mm

74.9 mm
Thickness

8.3 mm

9.2 mm
Weight

187 g

214.5 g
Colors

Black, Blue

Blue, Orange, Silver

Display
Display type

IPS LCD

Super AMOLED capacitive touchscreen
Physical size

6.58 inches

6.44 inches
Resolution

1080 x 2408 pixels

1080 x 2400 pixels
Pixel density

401 ppi

409 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 6
Multitouch

-

Yes
Display features

-

HDR10+, 180Hz touch-sensing

Main camera
Camera type

Triple

Quad
Main camera

(wide) , 50 MP, f/1.8 , 26 mm

48 MP, f/1.8 , 1/2.0" , 0.8 µm
(macro) , 2 MP, f/2.4

13 MP, f/2.5 , 50 mm, 2x optical zoom
(depth) , 2 MP, f/2.4

13 MP, f/2.2 , 16 mm
2 MP, f/2.4
Primary camera resolution

8190 x 6144 pixels

8000 x 6000 pixels
Primary camera video

1080p@30fps, gyro-EIS

2160p@30/60fps, 1080p@30fps; gyro-EIS
Primary camera flash

dual-LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, RAW

Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus super night mode

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 1.0 reversible connector
USB On-The-Go

Yes

Yes
Bluetooth

v5.1

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

-