vivo X Fold2 vs vivo Y78

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 32, 34, 38, 39, 40, 41, 42, 66

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

5G band 1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA

5G band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 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

LTE-A, 750 Mbps download, 211 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Aluminium alloy, faux leather, glass

Glass front, plastic frame, plastic back
SIM

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

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

161.3 mm

164.3 mm
Width

73.4 mm

74.8 mm
Thickness

12.9 mm

7.9 mm
Height unfolded

161.3 mm

-
Width unfolded

143.4 mm

-
Thickness unfolded

6 mm

-
Weight

279 g

177 g
Waterproof

-

IP54
Dust proof

-

IP54
Colors

Black, Blue, Red

Black, Gold

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 3.2 GHz Cortex-X3

Dual-core 2.2 GHz Kryo 660 Gold
CPU(second)

dual-core 2.8 GHz Cortex-A715

Hexa-core 1.7 GHz Kryo 660 Silver
CPU(third)

Dual-core 2.8 GHz Cortex-A710
CPU(fourth)

Triple-core 2.0 GHz Cortex-A510
Chipset

Qualcomm SM8550-AB Snapdragon 8 Gen 2

Qualcomm SM6375 Snapdragon 695 5G
GPU

Adreno 740

Adreno 619
Memory RAM

12 GB

8 GB
Internal storage

256, 512 GB

256 GB
Memory card

No

No
Storage

UFS 4.0

-

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 50 MP, f/1.8 , 1/1.49" , 1.0 µm

(wide) , 64 MP, f/1.8
(telephoto) , 12 MP, f/2.0 , 47 mm, 1/2.93" , 1.22 µm, 2x optical zoom

(macro) , 2 MP, f/2.4
108˚ , (ultrawide) , 12 MP, f/2.0 , 16 mm, 1/2.93" , 1.22 µm

(depth) , 2 MP, f/2.4
Primary camera resolution

8192 x 6144 pixels

8190 x 6120 pixels
Primary camera video

8K@30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS

1080p@30fps
Primary camera optics

Zeiss optics

-
Primary camera flash

dual-LED flash

LED flash
Camera features

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

Autofocus, continuous shooting, digital 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

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 16 MP, f/2.5

(wide) , 16 MP, f/2.5
Selfie camera resolution

4608 x 3456 pixels

3264 x 2448 pixels
Selfie camera features

Digital image stabilization, face detection, face unlock, HDR

Face unlock
Selfie camera video

1080p@30fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax, 802.11be

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
WiFi Tri-Band

Yes

-
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.3

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes

Features
Sensors

Accelerometer, barometer, compass, dual screen fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity