Redmi 15 vs Samsung Galaxy S23 Ultra – Price, Specs & Features

Redmi 15 alternatives

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Samsung Galaxy S23 Ultra alternatives

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Samsung Galaxy S24 Ultra

Vivo X200

Apple iPhone 15

Google Pixel 9 Pro

Apple iPhone 16 Pro Max

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Redmi 15

Snapdragon 6s Gen 3
6 nm
7000 mAh
33W
6.9"
1080 x 2340 pixels
50 MP
1080p@30fps
Specs

Samsung Galaxy S23 Ultra

Snapdragon 8 Gen 2
4 nm
5000 mAh
45W
6.8"
1440 x 3088 pixels
200 MP
8K@24/30fps
Specs

Samsung Galaxy S23 Ultra

General

Launch Date

August 19, 2025

February 01, 2023

Availability

August 28

Available Now

Android 15

Android 13

Custom UI

HyperOS 2.2

One UI 5.1

OS Updates

2 Years

4 Years

Security Updates

4 Years

5 Years

AI Features

Circle to Search, Gemini Live, AI Erase and more

Circle to Search, Live Translate, Note Assist, Photo Assist, Chat Assist

Body

Dimensions

169.5 x 80.5 x 8.4 mm

163.4 x 78.1 x 8.9 mm

Thickness

8.4 mm

8.9 mm

Weight

217 g

234 g

Back Material

Gorilla Glass Victus 2

Build Details

Plastic Back

Aluminum Frame

IP Rating

IP64 (dust tight and water resistant (water splashes))

IP68 (up to 1.5m for 30 min)

Display

Size

6.9 inches

6.8 inches

Type

IPS LCD

Dynamic AMOLED 2X, HDR10, Always-on display

Refresh Rate

144 Hz

120 Hz

Peak Brightness

850 nits

1750 nits

Resolution

1080 x 2340 pixels

1440 x 3088 pixels

Pixel Density

374 ppi

500 ppi

Aspect Ratio

19.5:9

19.3:9

Screen to Body Ratio

85.7 %

89.9 %

Protection

Gorilla Glass Victus 2

Performance

Chipset¹

Qualcomm Snapdragon 6s Gen 3

Qualcomm Snapdragon 8 Gen 2

Process Size

6 nm

4 nm

CPU

Octa-core
2x2.3 GHz Cortex-A78
6x2.0 GHz Cortex-A55

Octa-core
1x3.36 GHz Cortex-X3
2x2.8 GHz Cortex-A715
2x2.8 GHz Cortex-A710
3x2.0 GHz Cortex-A510

GPU

Adreno 619

Adreno 740

RAM & Storage

6GB 128GB (UFS 2.2)
8GB 128GB (UFS 2.2)
8GB 256GB (UFS 2.2)

8GB 256GB (UFS 4.0)
12GB 256GB (UFS 4.0)
12GB 512GB (UFS 4.0)
12GB 1024GB (UFS 4.0)

RAM Type

LPDDR4X

LPDDR5X

Expandable Memory

Yes

Camera

Main Camera

50 MP
f/1.75, (wide), 1/2.88" 0.61μm, PDAF
Auxiliary lens

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

10 MP
f/2.4, 70mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x optical zoom

10 MP
f/4.9, 230mm (periscope telephoto), 1/3.52", 1.12µm, PDAF, OIS, 10x optical zoom

12 MP
f/2.2, 13mm, 120˚ (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video

OIS

Yes

Features

LED flash, HDR

LED flash, auto-HDR, panorama, Digital Zoom, Auto Flash, Face detection, Touch to focus

Video Recording

1080p@30fps

8K@24/30fps
4K@30/60fps
1080p@30/60/240fps
1080p@960fps

Video Recording Features

Slo-motion, Ultra Steady Video, Video HDR, Bokeh portrait video, Video Pro Mode, Stereo recording, gyro-EIS

Selfie Camera

8 MP
f/2.2, (wide)

12 MP
f/2.2, 26mm (wide), dual pixel PDAF

Selfie Features

HDR

Dual video call, Auto-HDR, HDR10+

Selfie Video Recording

1080p@30fps

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

Connectivity

SIM

Dual SIM (Nano + Nano (Hybrid))

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

5G Support

Yes

7 5G bands
n1, n3, n5, n8, n28, n40, n78

Yes

15 5G bands
n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n77, n78

VoLTE

Yes

Wi-Fi

Wi-Fi 5

Wi-Fi 6E

Wi-Fi Details

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

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

Wi-Fi Features

Mobile Hotspot

Wi-Fi Direct, Mobile Hotspot

USB

USB Type-C 2.0, OTG

USB Type-C 3.2, OTG

Bluetooth

5.1

5.3

NFC

Yes

GPS

Yes with A-GPS, Glonass

Infrared

Yes

UWB (Ultra Wideband)

Yes

Battery

Capacity

7000 mAh

5000 mAh

Type

Silicon Carbon

Li-ion

Removable

Wired charging

33W

45W

Charging Speed

65% in 30 min

Reverse Wired Charging

15W

Wireless Charging

-2W

15W

Reverse Wireless Charging

4.5W

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

FM Radio

Extra Features

Sensors

Side-mounted fingerprint sensor, accelerometer, compass

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

Others

Virtual proximity sensing

Samsung DeX, Samsung Wireless DeX

Colors and Pricing

Colors

Midnight Black, Frosted White, Sandy Purple

Phantom Black, Green, Cream, Lavender, Graphite, Sky Blue, Lime, Red, BMW M Edition

Price in India

₹14999

₹79999

FAQs

Which phone has better performance?

In this performance comparison, the Samsung Galaxy S23 Ultra with its Qualcomm Snapdragon 8 Gen 2 (4nm) performs better than the Redmi 15 with the Qualcomm Snapdragon 6s Gen 3 (6nm), thanks to superior chipset efficiency.

Which phone offers longer software support?

Samsung Galaxy S23 Ultra offers 4 years of OS updates, whereas Redmi 15 provides 2 years. For security updates, Samsung Galaxy S23 Ultra offers 5 years of support compared to Redmi 15's 4 years.

Which phone has a better display?

Samsung Galaxy S23 Ultra features a superior AMOLED display, while Redmi 15 comes with an LCD panel. In terms of smoothness, Redmi 15 offers a higher 144 Hz refresh rate, ensuring fluid scrolling and animations. Samsung Galaxy S23 Ultra also boasts a brighter screen with 1750 nits of peak brightness, enhancing outdoor visibility. Notably, Samsung Galaxy S23 Ultra offers a higher screen resolution, resulting in sharper visuals and more detailed content.

Which phone has a bigger battery and faster charging?

Redmi 15 comes with a larger 7000 mAh battery, which may offer longer usage on a single charge. Samsung Galaxy S23 Ultra also supports faster wired charging at 45W, compared to 33W on Redmi 15. Samsung Galaxy S23 Ultra supports faster wireless charging at 15W, compared to -2W on Redmi 15.

Which phone has better water and dust resistance?

Samsung Galaxy S23 Ultra offers better protection against water and dust with an IP68 rating.

Can I buy these phones on Amazon?

Samsung Galaxy S23 Ultra – Check price here

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