Redmi 15 5G vs Nothing Phone (4b)
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At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Redmi 15 5G |  Nothing Phone (4b) |
|---|---|---|
| Price | — | KSh 46,500.00 |
| Display | 6.9 inches, 116.9 cm2 (~85.7% screen-to-body ratio); IPS LCD | 6.77 inches: AMOLED, 120Hz, 480Hz PWM, 600 nits (typ), 1200 nits (HBM), 2000 nits (peak) |
| Processor | Qualcomm SM6375 Snapdragon 6s Gen 3 (6 nm) | Qualcomm Snapdragon 6 Gen 4 (4 nm) |
| RAM | 4GB, 6GB, 8GB | 8GB |
| Storage | 128GB, 256GB | 128GB, 256GB |
| Rear camera | 50 MP, f/1.8, (wide), 1/2.88" 0.61μm, PDAF; Auxiliary lens | 50 MP, f/1.8, (wide), 1/2.76", PDAF, OIS 8 MP, f/2.2, 15mm, 120˚ (ultrawide), 1/4.0", 1.12µm |
| Battery | 7000 mAh | 5200 mAh - International 6000 mAh - India |
| Charging | 33W wired, PD 2.0, PPS, QC3; 18W reverse wired | 33W wired, PPS, UFCS, PD 7.5W reverse wired |
| Weight | 217 g (7.65 oz) | 210 g (7.41 oz) |
| Operating system | Android 15, upgradable to Android 16, HyperOS 3 | Android 16, Nothing OS 4.1, up to 3 major OS updates |
| Network | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE / 5G |
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Full specifications
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General
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Brand | Redmi | Nothing |
| Model | Redmi 15 5G | Nothing Phone (4a) |
| Announced | 2025, August 01 | 2026, July 07 |
Design
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Dimensions | 169.5 x 80.5 x 8.4 mm (6.67 x 3.17 x 0.33 in) | 164.4 x 78.2 x 8.6 mm (6.47 x 3.08 x 0.34 in) |
| Weight | 217 g (7.65 oz) | 210 g (7.41 oz) |
| Build materials | Glass front (Gorilla Glass 3), plastic frame, plastic back | Glass front, plastic frame, plastic back |
Display
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Display | 6.9 inches, 116.9 cm2 (~85.7% screen-to-body ratio); IPS LCD | 6.77 inches: AMOLED, 120Hz, 480Hz PWM, 600 nits (typ), 1200 nits (HBM), 2000 nits (peak) |
| Screen resolution | 1080 x 2340 pixels, 19.5:9 ratio (~374 ppi density) | 1080 x 2344 pixels, 19.5:9 ratio (~381 ppi density) |
| Display protection | Corning Gorilla Glass 3, Mohs level 6 | Dragontail Pro Glass |
| Display features | 144Hz, 600 nits (typ), 700 nits (HBM), 850 nits (peak) | AMOLED, 120Hz, 480Hz PWM, 600 nits (typ), 1200 nits (HBM), 2000 nits (peak) |
Performance
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Processor | Qualcomm SM6375 Snapdragon 6s Gen 3 (6 nm) | Qualcomm Snapdragon 6 Gen 4 (4 nm) |
| CPU | Octa-core (2x2.3 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) | Octa-core (1x2.3 GHz Cortex-A720s & 3x2.2 GHz Cortex-A720s & 4x1.8 GHz Cortex-A520s) |
| GPU | Adreno 619 | Adreno 810 |
Memory & Storage
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| RAM | 4GB, 6GB, 8GB | 8GB |
| Storage | 128GB, 256GB | 128GB, 256GB |
| Storage technology | UFS 2.2 | UFS 2.2 |
| Expandable storage | microSDXC (uses shared SIM slot) | No |
Cameras
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Rear camera | 50 MP, f/1.8, (wide), 1/2.88" 0.61μm, PDAF; Auxiliary lens | 50 MP, f/1.8, (wide), 1/2.76", PDAF, OIS 8 MP, f/2.2, 15mm, 120˚ (ultrawide), 1/4.0", 1.12µm |
| Front camera | 8 MP, f/2.0, (wide) | 32 MP, f/2.2, 22mm (wide), 1/3.42", 0.64μm |
| Rear camera features | LED flash, HDR | 16 MP, f/2.4, (wide), 1/3.0" |
| Rear camera video | 1080p@30fps | 4K@30fps, 1080p@30/60/120fps, gyro-EIS |
| Front camera features | HDR | — |
| Front camera video | 1080p@30fps | 1080p@30fps |
Battery & Charging
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Battery | 7000 mAh | 5200 mAh - International 6000 mAh - India |
| Charging | 33W wired, PD 2.0, PPS, QC3; 18W reverse wired | 33W wired, PPS, UFCS, PD 7.5W reverse wired |
Software
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Operating system | Android 15, upgradable to Android 16, HyperOS 3 | Android 16, Nothing OS 4.1, up to 3 major OS updates |
Network
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Network | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE / 5G |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
Connectivity
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| NFC | Yes (market/region dependent) | Yes (market/region dependent) |
| Bluetooth | 5.1, A2DP, LE, aptX | 6.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Positioning | GPS, GLONASS, GALILEO, BDS | GPS, GALILEO, GLONASS, BDS, QZSS |
| Radio | No | No |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0, OTG |
| Ultra Wideband (UWB) | — | No |
| Satellite features | — | No |
Durability
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Water resistance | IP64 dust tight and water resistant (water splashes) | IP64 dust tight and water resistant (water splashes) Manufacturer-rated water-resistant (up to 25cm for 20 min) |
Features
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, compass; Virtual proximity sensing | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Colors | Midnight Black, Titan Gray, Ripple Green | White, Black, Blue |
Audio
| Specification | Redmi 15 5G | Nothing Phone (4b) |
|---|---|---|
| Loudspeakers | Yes; 24-bit/192kHz Hi-Res audio | Yes, with stereo speakers |
| 3.5 mm headphone jack | No | No |