Vivo Y18i vs Xiaomi 15 Ultra – Price, Specs & Features

Q: Which phone has better performance, the Vivo Y18i or the Xiaomi 15 Ultra?

In this comparison, the Xiaomi 15 Ultra with the Snapdragon 8 Elite (3 nm) performs better than the Vivo Y18i with the Unisoc T612 (12 nm), thanks to its more efficient chipset.

Vivo Y18i alternatives

Tap above to see alternatives.

Xiaomi 15 Ultra alternatives

Tap above to see alternatives.

Apple iPhone 15 Plus

Google Pixel 9 Pro

Samsung Galaxy S23 Ultra

Samsung Galaxy S24 Ultra

Vivo X200 Pro

Your comparison result will be shown here.

Vivo Y18i

Unisoc T612
12 nm
5000 mAh
15W
6.56"
720x1612 pixels
13 MP
1080p@30fps

Xiaomi 15 Ultra

Snapdragon 8 Elite
3 nm
5410 mAh
90W
6.73"
1440 x 3200 pixels
50 MP
8K@30fps

Xiaomi 15 Ultra

General

Launch Date

August 23, 2024

March 11, 2025

Availability

Available Now

Android 14

Android 15

Custom UI

Funtouch 14

HyperOS 2

OS Updates

1 Years

4 Years

Security Updates

2 Years

6 Years

AI Features

HyperAI, AI Write, AI Summary and more

Body

Dimensions

163.6 x 75.6 x 8.4 mm

161.3 x 75.3 x 9.4 mm

Thickness

8.4 mm

9.4 mm

Weight

185 g

226 g

Build Details

Plastic Frame, Plastic Back

Glass-fiber Back Or Vegan Leather, Aluminum Frame

IP Rating

IP54 (dust and splash resistant)

IP68 (dust tight and water resistant (immersible up to 1.5m for 30 min))

Display

Size

6.56 inches

6.73 inches

Type

IPS LCD

LTPO AMOLED, 68B colors, Dolby Vision, HDR10+, HDR Vivid

Refresh Rate

90 Hz

120 Hz

Peak Brightness

528 nits

3200 nits

Resolution

720x1612 pixels

1440 x 3200 pixels

Pixel Density

269 ppi

522 ppi

Aspect Ratio

20:9

Screen to Body Ratio

83.6 %

89.7 %

Performance

Chipset

Unisoc Unisoc T612

Qualcomm Snapdragon 8 Elite

Process Size

12 nm

3 nm

CPU

Octa-core
2x1.8 GHz Cortex-A75
6x1.8 GHz Cortex-A55

Octa-core
2x4.32 GHz Oryon V2 Phoenix L
6x3.53 GHz Oryon V2 Phoenix M

GPU

Mali-G57 MP1

Adreno 830

RAM & Storage

4GB 64GB (eMMC 5.1)

12GB 256GB (UFS 4.1)
16GB 512GB (UFS 4.1)
16GB 1024GB (UFS 4.1)

RAM Type

LPDDR4X

LPDDR5X

Expandable Memory

Yes

Camera

Main Camera

13 MP
f/2.2, (wide), PDAF

0.08 MP
f/3.0 (auxiliary lens)

50 MP
f/1.6, 23mm (wide), 1.0"-type, 1.6µm, Sony LYT-900, dual pixel PDAF, OIS

50 MP
f/1.8, 70mm (telephoto), 1/2.51", 0.7µm, Sony IMX858, dual pixel PDAF (10cm - ∞), OIS, 3x optical zoom

200 MP
f/2.6, 100mm (periscope telephoto), 1/1.4", 0.56µm, Samsung S5KHP9, multi-directional PDAF, OIS, 4.3x optical zoom

50 MP
f/2.2, 14mm, 115˚ (ultrawide), 1/2.76", 0.64µm, Samsung S5KJN5, dual pixel PDAF
TOF 3D, (depth)

OIS

Yes

Features

LED flash, panorama, Digital Zoom

Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)

Video Recording

1080p@30fps

8K@30fps
4K@30/60/120fps
1080p@30/60/120/240/480/960/1920fps

Video Recording Features

gyro-EIS, Dolby Vision HDR 10-bit recording (4K@60fps, 1080p)

Selfie Camera

5 MP
f/2.2, (wide)

32 MP
f/2.0, 21mm (wide), 1/3.14", 0.7µm, OmniVision OV32B40

Selfie Features

HDR, panorama

Selfie Video Recording

Yes

4K@30/60fps
1080p@30/60fps

Connectivity

SIM

Dual SIM, GSM+GSM
SIM1: Nano, SIM2: Nano

Dual SIM
SIM1: Nano, SIM2: Nano

SIM 1 5G Bands

21 Bands

FDD: N1, N2, N3, N5, N7, N8, N12, N20, N25, N26, N28
TDD: N38, N40, N41, N48, N66, N71, N75, N77, N78, N79

SIM 2 5G Bands

FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N20 / N25 / N26 / N28
TDD N38 / N40 / N41 / N48 / N66 / N71 / N75 / N77 / N78 / N79

VoLTE

Yes

Wi-Fi

Wi-Fi 5

Wi-Fi 7

Wi-Fi Details

802.11 a/b/g/n/ac 5GHz

802.11 a/b/g/n/ac/be/ax 5GHz 6GHz, MIMO

Wi-Fi Features

Mobile Hotspot

USB

USB Type-C 2.0, OTG

USB Type-C 3.2 Gen 2, DisplayPort, OTG

Bluetooth

5.0

6.0

NFC

Yes

GPS

Yes with A-GPS, Glonass

Infrared

Yes

UWB (Ultra Wideband)

Battery

Capacity

5000 mAh

5410 mAh

Type

Li-ion

Si/C Li-Ion

Removable

Wired charging

15W

90W

Wireless Charging

80W

Reverse Wireless Charging

10W

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

Yes

FM Radio

Yes

Extra Features

Sensors

Accelerometer, proximity

Under-display ultrasonic fingerprint sensor, accelerometer, gyroscope, proximity, compass, barometer

Others

Two-way satellite communication

Colors and Pricing

Colors

Space Black, Gem Green

Chrome Silver

Price in India

₹8399

₹109999

FAQs

Which phone has better performance?

In this comparison, the Xiaomi 15 Ultra with the Qualcomm Snapdragon 8 Elite (3nm) performs better than the Vivo Y18i with the Unisoc Unisoc T612 (12nm), thanks to its more efficient chipset.

Which phone offers longer software support?

The Xiaomi 15 Ultra offers 4 years of OS updates, while the Vivo Y18i provides 1 years. When it comes to security updates, Xiaomi 15 Ultra leads with 6 years of support.

Which phone has a better display?

Xiaomi 15 Ultra has a superior AMOLED display, while Vivo Y18i uses an LCD panel. Moreover, Xiaomi 15 Ultra offers a higher 120 Hz refresh rate for smoother scrolling. Xiaomi 15 Ultra also has a brighter display with 3200 nits, improving outdoor visibility. Notably, Xiaomi 15 Ultra has a higher resolution display, resulting in sharper visuals.

Which phone has a bigger battery and faster charging?

Xiaomi 15 Ultra has a larger 5410 mAh battery for longer usage. Xiaomi 15 Ultra supports faster wired charging at 90W. Xiaomi 15 Ultra supports wireless charging at 80W, while Vivo Y18i lacks this feature.

Which phone has better water and dust resistance?

Xiaomi 15 Ultra offers better water and dust resistance with an IP68 rating.