vivo Y55 vs vivo iQOO 9T

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 2100

HSDPA 800, 850, 900, 1700, 1800, 1900
4G network

LTE frequency band 1, 3, 5, 8, 40

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66
5G network

-

5G band 1, 3, 5, 8, 28, 40, 41, 77, 78
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-A, Cat4, 150 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front, plastic frame, plastic back

Glass front (Gorilla Glass 5), aluminum frame, glass back
SIM

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

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

160.8 mm

165 mm
Width

73.8 mm

77 mm
Thickness

8.4 mm

8 mm
Weight

182 g

206 g
Colors

Ice Dawn, Midnight Galaxy

Alpha, Legend (BMW M branding)

Display
Display type

AMOLED

AMOLED
Physical size

6.44 inches

6.78 inches
Resolution

1080 x 2400 pixels

1080 x 2400 pixels
Pixel density

409 ppi

388 ppi
Display colors

16777216

1073741824
Protection

-

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5
Display features

-

120Hz, HDR10+, 1500 nits (peak)

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.4 GHz Kryo 265 Gold

Single-core 3.19 GHz Cortex-X2
CPU(second)

quad-core 1.9 GHz Kryo 265 Silver

Triple-core 2.75 GHz Cortex-A710
CPU(third)

Quad-core 1.80 GHz Cortex-A510
Chipset

Qualcomm SM6225 Snapdragon 680 4G

Qualcomm SM8475 Snapdragon 8+ Gen 1
GPU

Adreno 610

Adreno 730
Memory RAM

8 GB

8, 12 GB
Internal storage

128 GB

128, 256 GB
Memory card

microSD, microSDHC, microSDXC

No
Memory card max

1 TB

-
Storage

-

UFS 3.1

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 50 MP, f/1.8 , 1/2.76" , 0.64 µm

(wide) , 50 MP, f/1.9 , 1/1.57" , 1.0 µm, 20x digital zoom
(macro) , 2 MP, f/2.4

(telephoto) , 12 MP, f/2.0 , 47 mm, 2x optical zoom
(depth) , 2 MP, f/2.4

(ultrawide) , 13 MP, f/2.2 , 120˚ , 16 mm
Primary camera resolution

8190 x 6144 pixels

-
Primary camera video

1080p@30fps, gyro-EIS

4K@30/60fps, 1080p@30/60fps, gyro-EIS
Primary camera flash

LED flash

dual-LED dual-tone 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, RAW

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, 802.11n 5GHz, 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 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD, aptX Adaptive
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

5000 mAh

4700 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Yes, 44W (50% in 27 min)

Yes, 120W(50% in 8 min, 100% in 19 min)
Talk time 4G

-

13.6 h