Compare / vivo Y400 vs vivo iQOO Pad Pro 8.8

vivo Y400 vs vivo iQOO Pad Pro 8.8

A side-by-side comparison of the vivo Y400 and the vivo iQOO Pad Pro 8.8, covering display, chipset, memory, camera, battery and build.

vivo Y400
vivo
vivo Y400

Overview

Display
vivo Y400
6.67inch
AMOLED · 120 Hz
1080 × 2400 · 395 PPI
vivo iQOO Pad Pro 8.8
8.8inch
AMOLED · 165 Hz
1440 × 2304 · 309 PPI
Chip
vivo Y400
Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)
Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55)
Adreno 613 · Android 15
vivo iQOO Pad Pro 8.8
Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
Adreno 840 · Android 17
Memory
vivo Y400
8GB RAM
128 GB · 256 GB storage
Unspecified
vivo iQOO Pad Pro 8.8
8 / 12 / 16GB RAM
256 GB · 512 GB storage
No card slot
Camera
vivo Y400
50MP
32 MP selfie
1080p@30fps video
vivo iQOO Pad Pro 8.8
13MP
8 MP selfie
4K video
Battery
vivo Y400
6,000mAh
90 W wired
vivo iQOO Pad Pro 8.8
9,020mAh
66 W wired
Build
vivo Y400
197g
162.3 × 75.3 × 7.9 mm
IP68
vivo iQOO Pad Pro 8.8
298g
197.4 × 126.3 × 5.7 mm
Connectivity
vivo Y400
5GWi-Fi 5Bluetooth 5.0Nano-SIM + Nano-SIMUSB Type-C 2.0
vivo iQOO Pad Pro 8.8
Wi-Fi 7Bluetooth 5.4NoUSB Type-C 3.2 Gen2

Specifications

vivo Y400

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 800 / 850 / 900 / 2100
4G bands
1, 3, 4, 5, 8, 18, 19, 26, 28, 38, 40, 41, 42, 48
5G bands
1, 3, 5, 8, 28, 40, 77, 78 SA/NSA
Speed
HSPA, LTE, 5G

vivo iQOO Pad Pro 8.8

Technology
No cellular connectivity
2G bands
N/A
3G bands
N/A
4G bands
N/A
GPRS
No
EDGE
No

vivo Y400

Announced
2025, August 04
Status
Available. Released 2025, August 07

vivo iQOO Pad Pro 8.8

Announced
2026, October 28
Status
Available. Released 2026, October 28

vivo Y400

Dimensions
162.3 x 75.3 x 7.9 mm (6.39 x 2.96 x 0.31 in)
Weight
197 g (6.95 oz)
Build
Glass front, plastic back, plastic frame
SIM

Nano-SIM + Nano-SIM

IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min)

MIL-STD-810H compliant*

* does not guarantee ruggedness or use in extreme conditions

vivo iQOO Pad Pro 8.8

Dimensions
197.4 x 126.3 x 5.7 mm (7.77 x 4.97 x 0.22 in)
Weight
298 g (10.51 oz)
Build
Glass front, aluminum back, aluminum frame
SIM

No

Built-in bi-directional cooling fan

vivo Y400

Type
AMOLED, 120Hz, 1200 nits (HBM), 1800 nits (peak)
Size
6.67 inches, 107.4 cm2 (~87.9% screen-to-body ratio)
Resolution
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)

vivo iQOO Pad Pro 8.8

Type
AMOLED1B colors165HzHDR10+1600 nits (HBM)4500 nits (peak)
Size
8.8 inches, 224.5 cm2 (~90.1% screen-to-body ratio)
Resolution
1440 x 2304 pixels, 16:10 ratio (~309 ppi density)

vivo Y400

OS
Android 15, Funtouch 15
Chipset
Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm)
CPU
Octa-core (2x2.2 GHz Cortex-A78 & 6x1.95 GHz Cortex-A55)
GPU
Adreno 613

vivo iQOO Pad Pro 8.8

OS
Android 17, OriginOS 7 HD
Chipset
Qualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)
CPU
Octa-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)
GPU
Adreno 840

vivo Y400

Card slot
Unspecified
Internal

128GB 8GB RAM, 256GB 8GB RAM

UFS 3.1

vivo iQOO Pad Pro 8.8

Card slot
No
Internal

256GB 8GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM

UFS 4.1

vivo Y400

Dual

50 MP, f/1.8, (wide), 1/2.96", PDAF

Auxiliary lens

Features
Ring-LED flash, panorama, HDR
Video
1080p@30fps

vivo iQOO Pad Pro 8.8

Single
13 MP
Video
4K, 1080p

vivo Y400

Single
32 MP, f/2.5, (wide)
Video
1080p@30fps

vivo iQOO Pad Pro 8.8

Single
8 MP
Video
1080p@30fps

vivo Y400

Loudspeaker
Yes, with stereo speakers
3.5mm jack

No

24-bit/192kHz Hi-Res audio

vivo iQOO Pad Pro 8.8

Loudspeaker
Yes, with stereo speakers
3.5mm jack
No

vivo Y400

WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
5.0, A2DP, LE
Positioning
GPS, GLONASS, GALILEO, BDS, QZSS
NFC
No
Radio
No
USB
USB Type-C 2.0, OTG

vivo iQOO Pad Pro 8.8

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band
Bluetooth
5.4, A2DP, LE
Positioning
No
NFC
No
Radio
No
USB
USB Type-C 3.2 Gen2, OTG, video output

vivo Y400

Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

vivo iQOO Pad Pro 8.8

Sensors
Accelerometer, gyro, proximity (accessories only)

vivo Y400

Type
Li-Ion 6000 mAh
Charging

90W wired, 50% in 20 min

Reverse wired

Bypass Charging

vivo iQOO Pad Pro 8.8

Type
Si/C Li-Ion 9020 mAh
Charging

66W wired, PD

5W reverse wired

vivo Y400

Colors
Glam White, Olive Green
SAR
0.99 W/kg (head)     0.80 W/kg (body)    
Price
About 220 EUR

vivo iQOO Pad Pro 8.8

Colors
Gray, Blue
Price
About 580 EUR

How the vivo Y400 and vivo iQOO Pad Pro 8.8 differ

  • The vivo iQOO Pad Pro 8.8 has a larger battery, 9020 mAh against 6000 mAh on the vivo Y400.
  • The vivo iQOO Pad Pro 8.8 has the bigger screen, 8.8 inches against 6.67 inches.
  • The vivo iQOO Pad Pro 8.8 offers more RAM, up to 16 GB against 8 GB.
  • The main cameras are 50 MP on the vivo Y400 and 13 MP on the vivo iQOO Pad Pro 8.8.
  • The vivo iQOO Pad Pro 8.8 is the newer of the two, released in October 2026.