Samsung Galaxy S24 Ultra vs Xiaomi Redmi Note 15 Specs Comparison

Availability

Officially announced
Jan 17, 2024	Dec 18, 2025
Prices (MSRP)
12GB/256GB - $1300 | €1449 12GB/512GB - $1420 12GB/1024GB - $1660	6GB/128GB - €210

Design

Dimensions
6.39 x 3.11 x 0.34 inches (~0.37 inches with camera bump) 162.3 x 79 x 8.6 mm (~9.5 mm with camera bump)	6.46 x 2.97 x 0.31 inches 164 x 75.4 x 7.9 mm
Weight
8.22 oz / 233.0 g	6.49 oz / 184.0 g
Materials
Back: Glass (Corning Gorilla Glass Armor) Frame: Titanium	Back: Plastic Frame: Aluminum
Resistance
Water, Dust; IP68	Water, Dust; IP64
Biometrics
Ultrasonic in-screen fingerprint	Optical in-screen fingerprint
Features
Stylus
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Titanium Black, Titanium Gray, Titanium Violet, Titanium Yellow, Titanium Blue, Titanium Green, Titanium Orange	Black, Forest Green, Glacier Blue, Purple

Display

Size
6.8-inch, 89.12% screen-to-body	6.8-inch, 89.59% screen-to-body
Type
Dynamic AMOLED, 120Hz, HDR, 2600 nits	AMOLED, 120Hz, 3200 nits
Resolution
3088x1440px, 19.5:9 ratio, 501 PPI	2392x1080px, 20:9 ratio, 388 PPI
Protection
Corning Gorilla Glass Armor

PhoneArena Display Test

Bright Max (20% APL)
2310 (Excellent)	3182 (Excellent)
Bright Min
1.1 (Good)	2 (Good)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 8 Gen 3 SM8650-AB (4 nm)	Mediatek Helio G100 Ultra (6 nm)
Processor
Octa-core 1x3.39GHz Cortex-X4 5x3.1GH​z Cortex-A720 2x2.2​GHz Cortex-A520	Octa-core 2x2.2GHz Cortex-A76 6x2.0G​Hz Cortex-A55
GPU
Adreno 750	Mali-G57 MC2
Memory
12GB (LPDDR5X)/256GB (UFS 4.0) 12GB/512GB 12GB/1024GB	6GB/128GB (UFS 2.2) 8GB/128GB 8GB/256GB 8GB/512GB
Storage expansion
not expandable	microSDXC
OS
Android (14), up to 7 OS updates	Android (15)

PhoneArena Performance Test

GeekBench 6 Single
2187	723
GeekBench 6 Multi
6669	1974
3D Mark High
4960	345
3D Mark Low
2710	342

Learn more on our PhoneArena Performance Test Results page.

Battery

Type
5000 mAh, Li - Ion	6000 mAh, Li - Ion
Charging
Fast charging Qi wireless charging, Reverse wireless charging	Fast charging
Charge speed
Wired: 45.0W Wireless: 15.0W	Wired: 33.0W

PhoneArena Battery Tests

Battery Life Estimate

7h 39min

Browsing

20h 6min

Video

8h 18min

Gaming

13h 53min

Battery Life Estimate

8h 2min

Browsing

19h 2min

Video

11h 53min

Gaming

9h 53min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera	Single camera
Main camera
200 MP (OIS, Laser and PDAF) Sensor name: Samsung ISOCELL HP2 Aperture size: F1.7 Focal length: 24 mm Sensor size: 1/1.3" Pixel size: 0.6 μm	108 MP (PDAF) Aperture size: F1.7 Focal length: 24 mm Sensor size: 1/1.67" Pixel size: 0.64 μm
Second camera
12 MP (Ultra-wide, PDAF) Sensor name: Sony IMX564 Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Third camera
10 MP (Telephoto, OIS, PDAF) Sensor name: Sony IMX754 Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 67 mm Sensor size: 1/3.52" Pixel size: 1.12 μm
Fourth camera
50 MP (Telephoto, Periscope, OIS, PDAF) Sensor name: Sony IMX854 Optical zoom: 5.0x Aperture size: F3.4 Focal Length: 111 mm Sensor size: 1/2.52" Pixel size: 0.7 μm
Flash
LED	LED
Video recording
8K UHD (30 fps), 4K UHD (120 fps), 1080p (240 fps) HDR, Continuous autofocus, Picture-taking during video recording	1080p (30 fps) HDR
Front
12 MP (PDAF, HDR) Video capture: 4K UHD (60 fps)	20 MP Video capture: 1080p (30 fps)

PhoneArena Camera Tests

156

Overall

162

Photo

151

Video

97

Overall

111

Photo

84

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.3	5.3
WLAN
Wi-Fi 6,Wi-Fi 6E,Wi-Fi 7,tri-band Wi-Fi Direct, Hotspot 802.11 ax	Yes Wi-Fi Direct, Hotspot
USB
Type-C, USB 3.2	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, Ultra Wideband (UWB)	NFC

Multimedia

Headphones
No 3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
aptX, aptX-HD	Dolby Atmos

Cellular

5G Bands
n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6, mmWave
LTE Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66	1, 3, 5, 7, 8, 20, 28
TDD Bands
38, 39, 40, 41	38, 40, 41
3G Bands
1, 2, 5, 8	1, 3, 5, 8
Data Speed
LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s
SIM type
Dual Nano SIM + eSIM	Dual Nano SIM

Regulatory Approval

FCC approval
Date approved: Nov 29, 2023 FCC ID value: A3LSMS928U
Measured SAR
Head: 1.26 W/kg Body: 0.62 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.26 W/kg

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