Redmi A4 vs Xiaomi 15 Ultra – Price, Specs & Features

Q: Which phone has better performance, the Redmi A4 or the Xiaomi 15 Ultra?

In this comparison, the Xiaomi 15 Ultra with the Snapdragon 8 Elite (3 nm) performs better than the Redmi A4 with the Snapdragon 4s Gen 2 (4 nm), thanks to its more efficient chipset.

Redmi A4 alternatives

Tap above to see alternatives.

Redmi 14C

Samsung Galaxy A06 4G

Redmi A3 4G

Lava Yuva 2

Tecno Spark 30C

Xiaomi 15 Ultra alternatives

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Apple iPhone 16 Pro Max

Samsung Galaxy S25 Ultra

Apple iPhone 16

Vivo X200 Pro

OnePlus 13

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Redmi A4

Snapdragon 4s Gen 2
4 nm
5160 mAh
18W
6.88"
720 x 1612 pixels
50 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

November 20, 2024

March 11, 2025

Availability

Available Now

Android 14

Android 15

Custom UI

HyperOS 1.0

HyperOS 2

OS Updates

2 Years

4 Years

Security Updates

4 Years

6 Years

AI Features

HyperAI, AI Write, AI Summary and more

Body

Dimensions

171.9 x 77.8 x 8.2 mm

161.3 x 75.3 x 9.4 mm

Thickness

8.2 mm

9.4 mm

Weight

212.4 g

226 g

Build Details

Glass back, Plastic Frame

Glass-fiber Back Or Vegan Leather, Aluminum Frame

IP Rating

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

Display

Size

6.88 inches

6.73 inches

Type

IPS LCD

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

Refresh Rate

120 Hz

Peak Brightness

600 nits

3200 nits

Resolution

720 x 1612 pixels

1440 x 3200 pixels

Pixel Density

257 ppi

522 ppi

Aspect Ratio

20:9

Screen to Body Ratio

85.0 %

89.7 %

Performance

Chipset

Qualcomm Snapdragon 4s Gen 2

Qualcomm Snapdragon 8 Elite

Process Size

4 nm

3 nm

CPU

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

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

GPU

Adreno

Adreno 830

RAM & Storage

4GB 64GB (UFS 2.2)
4GB 128GB (UFS 2.2)

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

50 MP
f/1.8, (wide)

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, HDR

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

1080p@30fps

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

7 Bands

FDD: N1, N3, N5, N8, N28
TDD: N40, N78

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

7 Bands

FDD: N1, N3, N5, N8, N28
TDD: N40, N78

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

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

USB Type-C 3.2 Gen 2, DisplayPort, OTG

Bluetooth

5.3

6.0

NFC

Yes

GPS

Yes with A-GPS

Yes with A-GPS, Glonass

Infrared

Yes

UWB (Ultra Wideband)

Battery

Capacity

5160 mAh

5410 mAh

Type

Li-Polymer

Si/C Li-Ion

Removable

Wired charging

18W

90W

Wireless Charging

80W

Reverse Wireless Charging

10W

Charger in the Box

Yes

Sound

Stereo Speakers

Yes

3.5mm Headphone Jack

Yes

FM Radio

Extra Features

Sensors

Fingerprint (side-mounted), accelerometer, compass

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

Others

Virtual proximity sensing

Two-way satellite communication

Colors and Pricing

Colors

Sparkle Purple, Starry Black

Chrome Silver

Price in India

₹8499

₹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 Redmi A4 with the Qualcomm Snapdragon 4s Gen 2 (4nm), thanks to its more efficient chipset.

Which phone offers longer software support?

The Xiaomi 15 Ultra offers 4 years of OS updates, while the Redmi A4 provides 2 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 Redmi A4 uses an LCD panel. They have the same 120 Hz refresh rate. 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 Redmi A4 lacks this feature.

Which phone has better water and dust resistance?

Xiaomi 15 Ultra has an IP68 rating, while Redmi A4 lacks official water and dust resistance.