Samsung Galaxy S25 Ultra vs Vivo Y18i – Price, Specs & Features

Q: Which phone has better performance, the Samsung Galaxy S25 Ultra or the Vivo Y18i?

In this comparison, the Samsung Galaxy S25 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.

Samsung Galaxy S25 Ultra alternatives

Tap above to see alternatives.

Samsung Galaxy S24 Ultra

Samsung Galaxy S23 Ultra

Oppo Find X8

Apple iPhone 16 Plus

Oppo Find X8 Pro

Vivo Y18i alternatives

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Samsung Galaxy S25 Ultra

Snapdragon 8 Elite
3 nm
5000 mAh
45W
6.9"
1440 x 3120 pixels
200 MP
8K@24/30fps

Vivo Y18i

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

Samsung Galaxy S25 Ultra Comparison & Specs

Vivo Y18i

General

Launch Date

January 22, 2025

August 23, 2024

Availability

Available Now

Android 15

Android 14

Custom UI

One UI 7

Funtouch 14

OS Updates

7 Years

1 Years

Security Updates

7 Years

2 Years

AI Features

AI Select, Circle to Search, Cross-app Action, Call Transcript, Writing Assist, Drawing Assist, Audio Eraser, Now Brief, Now Bar and More

Body

Dimensions

162.8 x 77.6 x 8.2 mm

163.6 x 75.6 x 8.4 mm

Thickness

8.2 mm

8.4 mm

Weight

218 g

185 g

Back Material

Corning Gorilla Armor

Build Details

Titanium Frame (grade 5)

Plastic Frame, Plastic Back

IP Rating

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

IP54 (dust and splash resistant)

Display

Size

6.9 inches

6.56 inches

Type

Dynamic LTPO AMOLED 2X, HDR10+, Always-on display, DX anti-reflective coating

IPS LCD

Refresh Rate

120 Hz

90 Hz

Peak Brightness

2600 nits

528 nits

Resolution

1440 x 3120 pixels

720x1612 pixels

Pixel Density

498 ppi

269 ppi

Aspect Ratio

19.5:9

20:9

Screen to Body Ratio

92.5 %

83.6 %

Protection

Corning Gorilla Armor

Performance

Chipset

Qualcomm Snapdragon 8 Elite

Unisoc Unisoc T612

Process Size

3 nm

12 nm

CPU

Octa-core
2x4.47 GHz Oryon V2 Phoenix L
6x3.53 GHz Oryon V2 Phoenix M

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

GPU

Adreno 830

Mali-G57 MP1

RAM & Storage

12GB 256GB (UFS 4.0)
12GB 512GB (UFS 4.0)
12GB 1024GB (UFS 4.0)

4GB 64GB (eMMC 5.1)

RAM Type

LPDDR5X

LPDDR4X

Expandable Memory

Yes

Camera

Main Camera

200 MP
f/1.7, 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS

10 MP
f/2.4, 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom

50 MP
f/3.4, 111mm (periscope telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x optical zoom

50 MP
f/1.9, 120˚ (ultrawide), 0.7µm, dual pixel PDAF, Super Steady video

13 MP
f/2.2, (wide), PDAF

0.08 MP
f/3.0 (auxiliary lens)

OIS

Yes

Features

Laser AF, Best Face, LED flash, auto-HDR, panorama

LED flash, panorama, Digital Zoom

Video Recording

8K@24/30fps
4K@30/60/120fps
1080p@30/60/240fps

1080p@30fps

Video Recording Features

10-bit HDR, HDR10+, Stereo Sound recording, gyro-EIS

Selfie Camera

12 MP
f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF

5 MP
f/2.2, (wide)

Selfie Features

HDR, HDR10+

Selfie Video Recording

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

Yes

Connectivity

SIM

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

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

SIM 1 5G Bands

17 Bands

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

SIM 2 5G Bands

17 Bands

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

VoLTE

Yes

Wi-Fi

Wi-Fi 7

Wi-Fi 5

Wi-Fi Details

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

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

Wi-Fi Features

Wi-Fi Direct, Mobile Hotspot

Mobile Hotspot

USB

USB Type-C 3.2, DisplayPort 1.2, OTG

USB Type-C 2.0, OTG

Bluetooth

5.4

5.0

NFC

Yes

GPS

Yes with A-GPS, Glonass

Infrared

Yes

UWB (Ultra Wideband)

Yes

Battery

Capacity

5000 mAh

Type

Li-Ion

Li-ion

Removable

Wired charging

45W

15W

Charging Speed

65% in 30 min

Wireless Charging

15W

Reverse Wireless Charging

4.5W

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

Yes

FM Radio

Yes

Extra Features

Sensors

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

Accelerometer, proximity

Others

Samsung DeX, Samsung Wireless DeX

Colors and Pricing

Colors

Titanium Silver Blue, Titanium Black, Titanium Gray, Titanium White Silver, Titanium Jet Black, Titanium Jade Green, Titanium Pink Gold

Space Black, Gem Green

Price in India

₹129999

₹8399

FAQs

Which phone has better performance?

In this comparison, the Samsung Galaxy S25 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 Samsung Galaxy S25 Ultra offers 7 years of OS updates, while the Vivo Y18i provides 1 years. When it comes to security updates, Samsung Galaxy S25 Ultra leads with 7 years of support.

Which phone has a better display?

Samsung Galaxy S25 Ultra has a superior AMOLED display, while Vivo Y18i uses an LCD panel. Moreover, it offers a higher 120 Hz refresh rate for smoother scrolling. Samsung Galaxy S25 Ultra also has a brighter display with 2600 nits, improving outdoor visibility. Notably, Samsung Galaxy S25 Ultra has a higher resolution display, resulting in sharper visuals.

Which phone has a bigger battery and faster charging?

Both phones have the same 5000 mAh battery capacity. Samsung Galaxy S25 Ultra supports faster wired charging at 45W. Samsung Galaxy S25 Ultra supports wireless charging at 15W, while Vivo Y18i lacks this feature.

Which phone has better water and dust resistance?

Samsung Galaxy S25 Ultra offers better water and dust resistance with an IP68 rating.