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Smartphone comparison

Redmi Note 15 5G vs Samsung Galaxy A18 4G

Compare cameras, battery, screen and everyday features.

Compared products
01Selected
Redmi Note 15 5G

Redmi Note 15 5G

  • 178 g.
  • Screen: 1080 x 2392 pixels (~388 ppi density).
  • Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm) processor.
  • Storage: UFS 2.2.
  • 5,520 mAh battery capacity.
KSh 30,000Out of Stock
02
Samsung Galaxy A18 4G 256GB

Samsung Galaxy A18 4G 256GB

  • 196 g.
  • 90 Hz display refresh rate.
  • 6.7 inch screen.
  • Exynos 1610 processor.
  • 128 GB storage in this version.
KSh 30,000Out of Stock

Add to comparison

2 spaces available

Nothing Phone 3a LiteKSh 30,250
Redmi Note 17 4GKSh 30,500
Samsung Galaxy A17 5GKSh 31,500
OPPO A5 Pro 5G 256GBKSh 32,100
Samsung Galaxy A26 5GKSh 27,000
Redmi Note 15 4GKSh 27,500
Honor X7d 4GKSh 30,000
2 of 4 products

Our quick verdict

The Redmi Note 15 5G has a bigger battery (5,520 mAh), scrolls more smoothly (120 Hz) and charges faster (45 W), while the Samsung Galaxy A18 4G runs newer Android 17, has 6 promised OS upgrades and offers FM radio.

Weight

Redmi Note 15 5G
178 g
Samsung Galaxy A18 4G
196 g

Display

Redmi Note 15 5G
1080 x 2392 pixels (~388 ppi density)
Samsung Galaxy A18 4G
1080 x 2340 pixels, 19.5:9 ratio (~385 ppi density)

Performance

Redmi Note 15 5G
Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm) processor
Samsung Galaxy A18 4G
Exynos 1610 processor

Battery capacity

Redmi Note 15 5G
5,520 mAh battery capacity
Samsung Galaxy A18 4G
5,000 mAh battery capacity

Charging

Redmi Note 15 5G
45 W rated wired charging power
Samsung Galaxy A18 4G
25 W rated wired charging power

Key differences

The main differences to help you choose.

Redmi Note 15 5G

  • Bigger battery: 5,520 mAh (vs 5,000 mAh).
  • Faster rated wired charging: 45 W (vs 25 W).
  • Smoother 120 Hz display (vs 90 Hz).
  • IP66 water and dust resistance (vs IP64).
  • Higher-resolution main camera: 108 MP (vs 50 MP).
  • Higher-resolution selfie camera: 20 MP (vs 13 MP).

Samsung Galaxy A18 4G

  • Newer Android 17 (vs Android 15).
  • More promised OS upgrades: 6 (vs 4).
  • FM radio (market/region dependent).
  • Newer Bluetooth 5.3 (vs 5.1).

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

More topicsFewer topics
6 priorities selected.
How each product answers the selected priorities
PriorityRedmi Note 15 5GSamsung Galaxy A18 4G
Display6.77-inch OLED display, 120 Hz, 388 ppi6.7-inch OLED display, 90 Hz, 385 ppi
Camera108 MP main camera with OIS50 MP main camera with OIS
PerformanceQualcomm Snapdragon 6 Gen 3 processorExynos 1610 processor
StorageUp to 512 GB storage128 GB storage
Battery capacity5,520 mAh battery5,000 mAh battery
Charging45 W wired charging25 W wired charging

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
BrandRedmiSamsung
ModelRedmi Note 15 5GGalaxy A18 4G
Announced2025, December 182026, September 15
Release statusAvailable. Released 2026, January 06—
Model numbers25096RA9BG, 25098RA98G—

Design

Design specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
Dimensions164 x 75.4 x 7.4 mm (6.46 x 2.97 x 0.29 in)164.4 x 77.9 x 7.7 mm (6.47 x 3.07 x 0.30 in)
Weight178 g (6.28 oz)196 g (6.91 oz)
Build materialsGlass front, plastic frame, plastic backGlass front (Gorilla Glass 3), plastic back, plastic frame
Additional body featuresMIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions—

Display

Display specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
Display6.77 inches, 110.9 cm2 (~89.7% screen-to-body ratio); AMOLED, 68B colors, 120Hz, 3840Hz PWM, HDR10+, 800 nits (typ), 3200 nits (peak)6.7 inches: Super AMOLED, 90Hz
Screen resolution1080 x 2392 pixels (~388 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~385 ppi density)
Display protectionScratch/drop-resistant glassCorning Gorilla Glass Victus+, Mohs level 5
Display features68B colors, 120Hz, 3840Hz PWM, HDR10+, 800 nits (typ), 3200 nits (peak)Super AMOLED, 90Hz
Display technologyAMOLED—
Display size6.77 inches—
Refresh rate120Hz—
Brightness800 nits (typ); 3200 nits (peak)—
HDR formatsHDR10+—
Pixel density388 ppi—
Screen-to-body ratio89.7% screen-to-body ratio—

Performance

Performance specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
ProcessorQualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm)Exynos 1610
CPUOcta-core (4x2.4 GHz Cortex-A78 & 4x1.8 GHz Cortex-A55)Octa-core (2x2.4 GHz Cortex-A7X & 6x2.0 GHz Cortex-A55)
GPUAdreno 710Mali-G57 MC2
User interfaceHyperOS 2—
Software supportup to 4 major OS updates—
Process node4 nm—

Memory & Storage

Memory & Storage specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
RAM6GB, 8GB, 12GB4GB, 6GB
Storage128GB, 256GB, 512GB128GB
Storage technologyUFS 2.2—
Expandable storagemicroSDXC (uses shared SIM slot)microSDXC (uses shared SIM slot)
Memory configurations128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM, 512GB 12GB RAM—

Cameras

Cameras specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
Rear camera108 MP, f/1.7, 24mm (wide), 1/1.67", 0.64µm, PDAF, OIS 8 MP, f/2.2, 16mm (ultrawide), 1/4.0", 1.12µm50 MP, f/1.8, (wide), 1/2.76", 0.64µm, AF, OIS 5 MP, f/2.2, (ultrawide), 1/5.0", 1.12µm 2 MP (macro)
Front camera20 MP, f/2.2, 21mm (wide), 1/4.0"13 MP, f/2.0, (wide), 1/3.1", 1.12µm
Rear camera featuresLED flash, HDR, panoramaLED flash, panorama, HDR
Rear camera video4K@30fps, 1080p@30fps, gyro-EIS, OIS1080p@30fps
Front camera video1080p@30fps1080p@30fps
Front camera features—HDR

Battery & Charging

Battery & Charging specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
BatterySi/C Li-Ion 5520 mAh5000 mAh
Charging45W wired 18W reverse wired25W wired
Battery technologySi/C Li-Ion—
Reverse charging18W reverse wired—

Software

Software specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
Operating systemAndroid 15, up to 4 major OS updates, HyperOS 2Android 17, up to 6 major OS updates, One UI 9

Network

Network specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
NetworkGSM / HSPA / LTE / 5GGSM / HSPA / LTE
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
2G bandsGSM 850 / 900 / 1800 / 1900—
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - International; HSDPA 850 / 900 / 2100 - India—
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 42, 48, 66, 71 - International; 1, 3, 5, 8, 28, 40, 41 - India—
5G bands1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 71, 77, 78 SA/NSA - International; 1, 3, 5, 8, 28, 40, 78 SA/NSA - India—
Network speedHSPA, LTE, 5G—

Connectivity

Connectivity specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
NFCYes (market/region dependent)Yes (market/region dependent)
Bluetooth5.1 or 5.3, A2DP, LE5.3, A2DP, LE
Wi-FiWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
PositioningGPS, GLONASS, BDS, GALILEOGPS, GALILEO, GLONASS, BDS, QZSS
RadioNoFM radio (market/region dependent)
USBUSB Type-C 2.0, OTGUSB Type-C 2.0
InfraredYes—
Ultra Wideband (UWB)—Not Supported
Satellite features—Not Supported

Durability

Durability specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
Water resistanceIP66 dust tight and water resistant (high pressure water jets) Drop resistant up to 1.7mIP64 dust protected and water resistant (water splashes)

Features

Features specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
SensorsFingerprint (under display, optical), accelerometer, gyro, compassFingerprint (side-mounted), accelerometer, compass Virtual proximity sensing
ColorsBlack, Glacier Blue, Mist PurpleGray, Light Blue, Black

Audio

Audio specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
LoudspeakersYes, with stereo speakers (with Dolby Atmos)Yes
3.5 mm headphone jackNoNo
Audio features24-bit/192kHz Hi-Res audio—

Tests

Tests specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
Measured performanceAnTuTu: 637266 (v10) GeekBench: 2958 (v6) 3DMark: 861 (Wild Life Extreme)—
Measured display1524 nits max brightness (measured)—
Measured loudspeaker-23.4 LUFS (Very good)—
Measured battery enduranceActive use score 14:12h—

EU label

EU label specifications comparison
SpecificationRedmi Note 15 5GSamsung Galaxy A18 4G 256GB
EnergyClass B—
Battery51:22h endurance, 1000 cycles—
Free fallClass A (270 falls)—
RepairabilityClass C—

Similarities

  • Both have optical image stabilisation.
  • Both support Wi-Fi 5.
  • Both have NFC.
  • Both have a plastic frame.
  • Both have OLED displays.
  • Both charge over USB-C.

In summary

For most buyers the Redmi Note 15 5G is the better buy; the Samsung Galaxy A18 4G makes sense if you want newer Android 17.

Back to compared products ↑

In-stock alternatives

Nothing Phone 3a LiteFor Redmi Note 15 5GNothing Phone 3a LiteView product ↗Redmi Note 17 4GFor Redmi Note 15 5GRedmi Note 17 4GView product ↗Samsung Galaxy A17 5GFor Samsung Galaxy A18 4G 256GBSamsung Galaxy A17 5GView product ↗

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