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Smartphone comparison

Nothing Phone 3a vs Redmi Note 15 Pro 4G

Compare cameras, battery, screen and everyday features.

Compared products
01Selected
Nothing Phone 3a

Nothing Phone 3a

  • 201 g.
  • About 120 Hz display refresh rate.
  • About 6.77 inch screen.
  • Qualcomm SM7635 Snapdragon 7s Gen 3 (4 nm) processor.
  • Storage: UFS 2.2.
KSh 39,300In Stock
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02
Redmi Note 15 Pro 4G

Redmi Note 15 Pro 4G

  • 195 g.
  • Screen: 1080 x 2392 pixels (~388 ppi density).
  • Mediatek Helio G200 Ultra (6 nm) processor.
  • Storage: UFS 2.2.
  • 6,500 mAh battery capacity.
KSh 38,500In Stock
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Add to comparison

2 spaces available

Samsung Galaxy A36 5GKSh 40,000
Nothing Phone 2aKSh 43,000
Samsung Galaxy A37 5GKSh 38,500
Google Pixel 7KSh 39,500
Redmi Note 15 Pro 5GKSh 38,000
Motorola G77 5GKSh 40,500
Infinix GT 30 ProKSh 37,800
2 of 4 products

Our quick verdict

The Redmi Note 15 Pro 4G has a bigger battery (6,500 mAh), a higher-resolution main camera (200 MP) and 4 promised OS upgrades, while the Nothing Phone 3a has optical zoom, offers 1080p recording at up to 120 fps, has a longer cycle life (1,400 cycles) and offers newer Wi-Fi 6.

Weight

Nothing Phone 3a
201 g
Redmi Note 15 Pro 4G
195 g

Display

Nothing Phone 3a
1080 x 2392 pixels (~387 ppi density)
Redmi Note 15 Pro 4G
1080 x 2392 pixels (~388 ppi density)

Performance

Nothing Phone 3a
Qualcomm SM7635 Snapdragon 7s Gen 3 (4 nm) processor
Redmi Note 15 Pro 4G
Mediatek Helio G200 Ultra (6 nm) processor

Battery capacity

Nothing Phone 3a
5,000 mAh battery capacity
Redmi Note 15 Pro 4G
6,500 mAh battery capacity

Charging

Nothing Phone 3a
50 W rated wired charging power
Redmi Note 15 Pro 4G
45 W rated wired charging power

Key differences

The main differences to help you choose.

Nothing Phone 3a

  • Telephoto camera with 2x optical zoom.
  • Rated for more charge cycles: 1,400 (vs 1,000).
  • Newer Wi-Fi 6 (vs Wi-Fi 5).
  • Newer Bluetooth 5.4 (vs 5.3).
  • Higher frame rates for 1080p recording: up to 120 fps (vs 60 fps).
  • 4K video recording (vs 1080p).

Redmi Note 15 Pro 4G

  • Bigger battery: 6,500 mAh (vs 5,000 mAh).
  • IP65 water and dust resistance (vs IP64).
  • Higher-resolution main camera: 200 MP (vs 50 MP).
  • More promised OS upgrades: 4 (vs 3).
  • 18 W reverse charging for earbuds or another phone.

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
PriorityNothing Phone 3aRedmi Note 15 Pro 4G
Display6.77-inch OLED display, 120 Hz, 387 ppi6.77-inch OLED display, 120 Hz, 388 ppi
Camera50 MP main camera with OIS, plus a 2x telephoto camera200 MP main camera with OIS
PerformanceQualcomm Snapdragon 7s Gen 3 processorMediatek Helio G200 Ultra processor
StorageUp to 256 GB storageUp to 512 GB storage
Battery capacity5,000 mAh battery6,500 mAh battery
Charging50 W wired charging45 W wired charging

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
BrandNothingRedmi
ModelPhone (3a)Redmi Note 15 Pro 4G
Announced2025, March 042025, December 18
Release statusAvailable. Released 2025, March 11Available. Released 2026, January 06
Model numbersA05925100RA69G

Design

Design specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
Dimensions163.5 x 77.5 x 8.4 mm (6.44 x 3.05 x 0.33 in)163.2 x 76.3 x 8 mm (6.43 x 3.00 x 0.31 in)
Weight201 g (7.09 oz)195 g (6.88 oz)
Build materialsGlass front (Panda Glass), plastic frame, glass backGlass front (Gorilla Glass Victus 2), plastic back
Additional body features3 LED light strips on the back (notifications, camera fill light, 26 addressable zones)—

Display

Display specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
Display6.77 inches, 111.5 cm2 (~88.0% screen-to-body ratio); AMOLED, 1B colors, 120Hz, 2160Hz PWM, HDR10+, 800 nits (typ), 1300 nits (HBM), 3000 nits (peak)6.77 inches, 110.9 cm2 (~89.1% screen-to-body ratio); AMOLED, 68B colors, 120Hz, 3840Hz PWM, 3200 nits (peak)
Screen resolution1080 x 2392 pixels (~387 ppi density)1080 x 2392 pixels (~388 ppi density)
Display protectionPanda GlassCorning Gorilla Glass Victus 2
Display featuresUltra HDR image support68B colors, 120Hz, 3840Hz PWM, 3200 nits (peak)
Display technology—AMOLED
Display size—6.77 inches
Refresh rate—120Hz
Brightness—3200 nits (peak)
Pixel density—388 ppi
Screen-to-body ratio—89.1% screen-to-body ratio

Performance

Performance specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
ProcessorQualcomm SM7635 Snapdragon 7s Gen 3 (4 nm)Mediatek Helio G200 Ultra (6 nm)
CPUOcta-core (1x2.5 GHz Cortex-A720 & 3x2.4 GHz Cortex-A720 & 4x1.8 GHz Cortex-A520)Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPUAdreno 810Mali-G57 MC2 (1.1GHz)
User interface—HyperOS 2
Software support—up to 4 major OS updates
Process node—6 nm

Memory & Storage

Memory & Storage specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
RAM8GB / 12GB8GB, 12GB
Storage128GB / 256GB256GB, 512GB
Storage technologyUFS 2.2UFS 2.2
Expandable storageNomicroSDXC (uses shared SIM slot)
Memory configurations128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM256GB 8GB RAM, 256GB 12GB RAM, 512GB 12GB RAM

Cameras

Cameras specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
Rear camera50 MP, f/1.9, 24mm (wide), 1/1.57", 1.0µm, dual pixel PDAF, OIS 50 MP, f/2.0, 50mm (telephoto), 1/2.74", 0.64µm, PDAF (25cm - ∞), 2x optical zoom 8 MP, f/2.2, 15mm, 120˚ (ultrawide), 1/4.0", 1.12µm200 MP, f/1.7, 23mm (wide), 1/1.4", 0.56µm, multi-directional PDAF, OIS 8 MP, f/2.2, 15mm, 120˚ (ultrawide), 1/4.0", 1.12µm
Front camera32 MP, f/2.2, 22mm (wide), 1/3.44"32 MP, f/2.2, 22mm (wide), 1/3.6", 0.61µm
Rear camera featuresLED flash, panorama, HDRLED flash, HDR, panorama
Rear camera video4K@30fps, 1080p@30/60/120fps, gyro-EIS, OIS1080p@30/60fps, gyro-EIS
Front camera video1080p@30fps1080p@30fps

Battery & Charging

Battery & Charging specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
Battery5000 mAhSi/C Li-Ion 6500 mAh
Charging50W wired, 50% in 19 min, 100% in 56 min45W wired 18W reverse wired
Battery technology—Si/C Li-Ion
Reverse charging—18W reverse wired

Software

Software specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
Operating systemAndroid 15, upgradable to Android 16, Nothing OS 4.0, up to 3 major OS updatesAndroid 15, up to 4 major OS updates, HyperOS 2

Network

Network specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
NetworkGSM / HSPA / LTE / 5GGSM / HSPA / LTE
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 40, 41, 42, 48, 661, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 40, 41, 66
5G bands1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA—
Network speedHSPA, LTE, 5GHSPA, LTE

Connectivity

Connectivity specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
NFCYesYes (market/region dependent)
Bluetooth5.4, A2DP, LE5.3, A2DP, LE
Wi-FiWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
PositioningGPS, GALILEO, GLONASS, BDS, QZSSGPS, GALILEO, GLONASS, QZSS, BDS
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
Infrared—Yes

Durability

Durability specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
Water resistanceIP64 dust tight and water resistant (water splashes)IP65 dust tight and water resistant (low pressure water jets)

Features

Features specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, proximity, gyro, compass
ColorsBlack, White, Blue, Community Edition greenBlack, Glacier Blue, Titanium

Audio

Audio specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
LoudspeakersYes, with stereo speakersYes, with stereo speakers (with Dolby Atmos)
3.5 mm headphone jackNoNo
Audio features—24-bit/192kHz Hi-Res audio

EU label

EU label specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
EnergyClass CClass B
Battery43:56h endurance, 1400 cycles62:38h endurance, 1000 cycles
Free fallClass C (90 falls)Class A (270 falls)
RepairabilityClass CClass C

Tests

Tests specifications comparison
SpecificationNothing Phone 3aRedmi Note 15 Pro 4G
Performance benchmarksAnTuTu: 828429 (v10) GeekBench: 3278 (v6) 3DMark: 1064 (Wild Life Extreme)—
Measured display brightness1273 nits max brightness (measured)—
Measured loudspeaker loudness-24.1 LUFS (Very good)—
Active use battery scoreActive use score 13:38h—
Measured performance—AnTuTu: 414497 (v10) GeekBench: 1994 (v6) 3DMark: 378 (Wild Life Extreme)
Measured display—1350 nits max brightness (measured)
Measured loudspeaker—-22.5 LUFS (Excellent)
Measured battery endurance—Active use score 16:24h

Similarities

  • Both have 120 Hz displays.
  • Both have optical image stabilisation.
  • Both have NFC.
  • Both have stereo speakers.
  • Both charge over USB-C.
  • Both take two SIM cards.

In summary

For most buyers the Redmi Note 15 Pro 4G is the better buy; the Nothing Phone 3a makes sense if you want optical zoom.

Back to compared products ↑

In-stock alternatives

Samsung Galaxy A36 5GFor Nothing Phone 3aSamsung Galaxy A36 5GView product ↗Samsung Galaxy A37 5GFor Nothing Phone 3aSamsung Galaxy A37 5GView product ↗Redmi Note 15 Pro 5GFor Redmi Note 15 Pro 4GRedmi Note 15 Pro 5GView product ↗Infinix GT 30 ProFor Redmi Note 15 Pro 4GInfinix GT 30 ProView product ↗

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