Compare / vivo Y400 vs vivo iQOO Neo12

vivo Y400 vs vivo iQOO Neo12

A side-by-side comparison of the vivo Y400 and the vivo iQOO Neo12, covering display, chipset, memory, camera, battery and build.

vivo Y400
vivo
vivo Y400
vivo iQOO Neo12
vivo
vivo iQOO Neo12

Overview

Display
vivo Y400
6.67inch
AMOLED · 120 Hz
1080 × 2400 · 395 PPI
vivo iQOO Neo12
6.83inch
AMOLED · 185 Hz
1440 × 3200 · 514 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 Neo12
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 Neo12
12 / 16GB RAM
256 GB · 512 GB · 1 TB storage
No card slot
Camera
vivo Y400
50MP
32 MP selfie
1080p@30fps video
vivo iQOO Neo12
50MP Main
8 MP Ultra Wide
16 MP selfie
8K video
Battery
vivo Y400
6,000mAh
90 W wired
vivo iQOO Neo12
9,000mAh
100 W wired
Build
vivo Y400
197g
162.3 × 75.3 × 7.9 mm
IP68
vivo iQOO Neo12
225g
163.4 × 75.9 × 8.5 mm
IP68
Connectivity
vivo Y400
5GWi-Fi 5Bluetooth 5.0Nano-SIM + Nano-SIMUSB Type-C 2.0
vivo iQOO Neo12
5GWi-Fi 7Bluetooth 5.4NFCNano-SIM + Nano-SIMUSB Type-C 2.0

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 Neo12

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 43, 48, 66
5G bands
1, 3, 5, 7, 8, 18, 26, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA
Speed
HSPA, LTE, 5G

vivo Y400

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

vivo iQOO Neo12

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 Neo12

Dimensions
163.4 x 75.9 x 8.5 mm (6.43 x 2.99 x 0.33 in)
Weight
225 g or 229 g (7.94 oz)
Build
Glass front, aluminum frame, glass-fiber reinforced plastic back or glass back
SIM

Nano-SIM + Nano-SIM

IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)

Built-in 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 Neo12

Type
AMOLED1B colors185HzHDR1000 nits (typ)2200 nits (HBM)
Size
6.83 inches, 112.6 cm2 (~90.8% screen-to-body ratio)
Resolution
1440 x 3200 pixels, 20:9 ratio (~514 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 Neo12

OS
Android 17, OriginOS 7
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 Neo12

Card slot
No
Internal

256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 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 Neo12

Dual

50 MP, f/1.9, 23mm (wide), 1/1.56", PDAF, OIS

8 MP, f/2.2, (ultrawide)

Features
LED flash, panorama, HDR
Video
8K, 4K, 1080p, gyro-EIS

vivo Y400

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

vivo iQOO Neo12

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

vivo Y400

Loudspeaker
Yes, with stereo speakers
3.5mm jack

No

24-bit/192kHz Hi-Res audio

vivo iQOO Neo12

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 Neo12

WLAN
Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band
Bluetooth
5.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless, LHDC 5
Positioning
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), GLONASS
NFC
Yes
Infrared port
Yes
Radio
No
USB
USB Type-C 2.0, OTG

vivo Y400

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

vivo iQOO Neo12

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

vivo Y400

Type
Li-Ion 6000 mAh
Charging

90W wired, 50% in 20 min

Reverse wired

Bypass Charging

vivo iQOO Neo12

Type
Si/C Li-Ion 9000 mAh
Charging

100W wired, 44W UFCS, 55W PPS

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 Neo12

Colors
Black, Blue, Gray
Models
V2618A
Price
About 570 EUR

How the vivo Y400 and vivo iQOO Neo12 differ

  • The vivo iQOO Neo12 has a larger battery, 9000 mAh against 6000 mAh on the vivo Y400.
  • The vivo iQOO Neo12 has the bigger screen, 6.83 inches against 6.67 inches.
  • The vivo iQOO Neo12 offers more RAM, up to 16 GB against 8 GB.
  • The vivo iQOO Neo12 is the newer of the two, released in October 2026.