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

Vivo Y18i alternatives

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Lava Yuva Star 4G

Samsung Galaxy F06 5G

Poco C75

Samsung Galaxy M35

iQOO Z10 Lite

Xiaomi 15 Ultra alternatives

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Samsung Galaxy S25 Ultra

Apple iPhone 15 Pro Max

Apple iPhone 16 Plus

Oppo Find X8 Pro

Google Pixel 9 Pro

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Vivo Y18i

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

Xiaomi 15 Ultra

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

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

Chipset¹

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

5G Support

No (Supports 4G only)

Yes

21 5G bands
n1, n2, n3, n5, n7, n8, n12, n20, n25, n26, n28, 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

Reverse Wired Charging

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

Which phone offers longer software support?

Xiaomi 15 Ultra offers 4 years of OS updates, whereas Vivo Y18i provides 1 years. For security updates, Xiaomi 15 Ultra offers 6 years of support compared to Vivo Y18i's 2 years.

Which phone has a better display?

Xiaomi 15 Ultra features a superior AMOLED display, while Vivo Y18i comes with an LCD panel. In terms of smoothness, Xiaomi 15 Ultra offers a higher 120 Hz refresh rate, ensuring fluid scrolling and animations. Xiaomi 15 Ultra also boasts a brighter screen with 3200 nits of peak brightness, enhancing outdoor visibility. Notably, Xiaomi 15 Ultra offers a higher screen resolution, resulting in sharper visuals and more detailed content.

Which phone has a bigger battery and faster charging?

Xiaomi 15 Ultra features a larger 5410 mAh battery, potentially delivering better battery life. Xiaomi 15 Ultra also supports faster wired charging at 90W, compared to 15W on Vivo Y18i. 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 protection against water and dust with an IP68 rating.

Can I buy these phones on Amazon?

Xiaomi 15 Ultra – Check price here

¹ Scores can vary even with the same chipset due to RAM, thermals, and software optimization.