Compare / vivo Y31 vs vivo iQOO Neo12

vivo Y31 vs vivo iQOO Neo12

A side-by-side comparison of the vivo Y31 and the vivo iQOO Neo12, covering display, chipset, memory, camera, battery and build.

vivo Y31
vivo
vivo Y31
vivo iQOO Neo12
vivo
vivo iQOO Neo12

Overview

Display
vivo Y31
6.68inch
IPS LCD · 120 Hz
720 × 1608 · 264 PPI
vivo iQOO Neo12
6.83inch
AMOLED · 185 Hz
1440 × 3200 · 514 PPI
Chip
vivo Y31
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 Y31
4 / 6 / 8GB RAM
128 GB · 256 GB · 512 GB storage
microSDXC (uses shared SIM slot)
vivo iQOO Neo12
12 / 16GB RAM
256 GB · 512 GB · 1 TB storage
No card slot
Camera
vivo Y31
50MP
8 MP selfie
1080p@30fps video
vivo iQOO Neo12
50MP Main
8 MP Ultra Wide
16 MP selfie
8K video
Battery
vivo Y31
6,500mAh
44 W wired
vivo iQOO Neo12
9,000mAh
100 W wired
Build
vivo Y31
209g
166.1 × 77 × 8.4 mm
IP68
vivo iQOO Neo12
225g
163.4 × 75.9 × 8.5 mm
IP68
Connectivity
vivo Y31
5GWi-Fi 5Bluetooth 4.2Nano-SIM + Nano-SIMUSB Type-C 2.0
vivo iQOO Neo12
5GWi-Fi 7Bluetooth 5.4NFCNano-SIM + Nano-SIMUSB Type-C 2.0

Specifications

vivo Y31

Technology
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 2100
4G bands
1, 3, 5, 8, 28, 38, 40, 41
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 Y31

Announced
2025, September 15
Status
Available. Released 2025, September 15

vivo iQOO Neo12

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

vivo Y31

Dimensions
166.1 x 77 x 8.4 mm (6.54 x 3.03 x 0.33 in)
Weight
209 g (7.37 oz)
SIM

Nano-SIM + Nano-SIM

IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m 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 Y31

Type
IPS LCD, 120Hz, 1000 nits (HBM)
Size
6.68 inches, 107.4 cm2 (~84.0% screen-to-body ratio)
Resolution
720 x 1608 pixels, 20:9 ratio (~264 ppi density)
Protection
Guardian Glass (ion-strengthened)

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 Y31

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 Y31

Card slot
microSDXC (uses shared SIM slot)
Internal

128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM, 512GB 6GB RAM, 512GB 8GB RAM

eMMC 5.1

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 Y31

Single

50 MP, f/1.8, (wide), PDAF

Auxiliary lens

Features
Ring-LED flash, panorama
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 Y31

Single
8 MP, f/2.0, (wide)
Video
1080p@30fps

vivo iQOO Neo12

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

vivo Y31

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 Y31

WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
4.2, 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 Y31

Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass

vivo iQOO Neo12

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

vivo Y31

Type
Li-Ion 6500 mAh
Charging

44W wired, 50% in 38 min

Reverse wired

vivo iQOO Neo12

Type
Si/C Li-Ion 9000 mAh
Charging

100W wired, 44W UFCS, 55W PPS

Reverse wired

vivo Y31

Colors
Rose Red, Diamond Green
SAR
1.13 W/kg (head)     0.99 W/kg (body)    
Price
About 150 EUR

vivo iQOO Neo12

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

How the vivo Y31 and vivo iQOO Neo12 differ

  • The vivo iQOO Neo12 has a larger battery, 9000 mAh against 6500 mAh on the vivo Y31.
  • The vivo iQOO Neo12 has the bigger screen, 6.83 inches against 6.68 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.