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

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Samsung Galaxy S23 Ultra alternatives

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Realme 15T

Dimensity 6400
6 nm
7000 mAh
60W
6.57"
1080 x 2372 pixels
50 MP
1080p@30/60
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

September 02, 2025

February 01, 2023

Availability

Available Now

Operating System (OS)

Android 15

Android 13

Custom UI

Realme UI 6.0

One UI 5.1

OS Updates

3 Years (until Android 18)

4 Years (until Android 17)

Security Updates

4 Years (until 2029)

5 Years (until 2028)

AI Features

AI Edit Genie, Circle to Search, AI Smart Loop and more

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

Body

Dimensions

158.4 x 75.2 x 7.8 mm

163.4 x 78.1 x 8.9 mm

Thickness

7.8 mm

8.9 mm

Weight

181 g

234 g

Back Material

Gorilla Glass Victus 2

Build Details

Plastic Frame, Plastic Back

Aluminum Frame

IP Rating

IP69 (dust tight and water resistant (high pressure water jets; immersible up to 2.5m for 30 min), also IP68 rated)

IP68 (up to 1.5m for 30 min)

Display

Size

6.57 inches

6.8 inches

Type

AMOLED, 1B colors

Dynamic AMOLED 2X, HDR10, Always-on display

Refresh Rate

120 Hz

Peak Brightness

4000 nits

1750 nits

Resolution

1080 x 2372 pixels

1440 x 3088 pixels

Pixel Density

401 ppi

500 ppi

Aspect Ratio

19.8:9

19.3:9

Screen to Body Ratio

86.4 %

89.9 %

Protection

Gorilla Glass Victus 2

Performance

Chipset¹

Mediatek Dimensity 6400 Max

Qualcomm Snapdragon 8 Gen 2

Process Size

6 nm

4 nm

CPU

Octa-core
2x2.5 GHz Cortex-A76
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

Mali-G57 MC2

Adreno 740

RAM & Storage

8GB 128GB (UFS 2.2)
8GB 256GB (UFS 2.2)
12GB 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/1.8, 27mm (wide), 1/2.88", OmniVision OV50D40, PDAF

2 MP
f/2.4

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, panorama

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

Video Recording

1080p@30/60
gyro-EIS

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

50 MP
f/2.4, OmniVision OV50D40

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

Selfie Features

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

9 5G bands
n1, n3, n5, n8, n28, n40, n41, n77, 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

5.3

NFC

Yes

GPS

Yes with A-GPS, Glonass

Infrared

Yes

UWB (Ultra Wideband)

Yes

Battery

Capacity

7000 mAh

5000 mAh

Type

Si/C Li-Ion

Li-ion

Removable

Wired charging

60W

45W

Charging Speed

50% in 31 mins

65% in 30 min

Reverse Wired Charging

10W

Wireless Charging

15W

Reverse Wireless Charging

4.5W

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

FM Radio

Extra Features

Sensors

Under-display optical fingerprint sensor, accelerometer, gyroscope, proximity, compass

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

Others

Samsung DeX, Samsung Wireless DeX

Colors and Pricing

Colors

Silk Blue, Suit Titanium, Flowing Silver

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

Price in India

₹20999

₹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 Realme 15T with the Mediatek Dimensity 6400 (6nm), thanks to superior chipset efficiency.

Which phone offers longer software support?

Realme 15T launched with Android 15 and will receive updates until Android 18, whereas Samsung Galaxy S23 Ultra launched with Android 13 and will get Android 17. Realme 15T will get security updates until 2029 (approx. 4 years), while Samsung Galaxy S23 Ultra is supported till 2028.

Which phone has a better display?

Both Realme 15T and Samsung Galaxy S23 Ultra feature AMOLED displays, offering vibrant colors and deeper blacks. Both smartphones offer the same 120 Hz refresh rate. Realme 15T also boasts a brighter screen with 4000 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?

Realme 15T comes with a larger 7000 mAh battery, which may offer longer usage on a single charge. Realme 15T also supports faster wired charging at 60W, compared to 45W on Samsung Galaxy S23 Ultra. Samsung Galaxy S23 Ultra supports wireless charging at 15W, while Realme 15T lacks this feature.

Which phone has better water and dust resistance?

Realme 15T offers better protection against water and dust with an IP69 rating.

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