Xiaomi Redmi Note 4 vs Xiaomi Redmi 15a
Product
Price
159 USD
159 USD
Status
Discontinued
Available
Brand
Xiaomi Mobiles
Xiaomi Mobiles
Model No
Redmi Note 4
Xiaomi Redmi 15a
Launch Date
2017, January 01
2026, March 27
Wikipedia
Technology
GSM / CDMA / HSPA / LTE
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 ,CDMA 800 & TD-SCDMA
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 900 / 2100
4G bands
1, 3, 5, 7, 38, 39, 40, 41 - Snapdragon model ,1, 3, 5, 7, 8, 38, 39, 40, 41 - Mediatek model
1, 3, 5, 8, 28, 40, 41
Speed
HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps
HSPA, LTE, 5G
5G bands
1, 3, 5, 8, 28, 40, 41, 78 SA/NSA
Dimensions
151 x 76 x 8.5 mm (5.94 x 2.99 x 0.33 in)
171.6 x 79.5 x 8.2 mm (6.76 x 3.13 x 0.32 in)
Weight
165 g (5.82 oz)
210 g (7.41 oz)
Build
Glass front, aluminum back, aluminum frame
SIM
Hybrid Dual SIM (Micro-SIM/Nano-SIM, dual stand-by)
Nano-SIM + Nano-SIM
Colors
Dark Gray, Gold, Black, Lake Blue
Black, Blue, Purple
Type
IPS LCD capacitive touchscreen, 16M colors
IPS LCD, 120Hz, 800 nits (peak)
Size
5.5 inches, 83.4 cm2 (~72.7% screen-to-body ratio)
6.9 inches, 114.9 cm2 (~84.3% screen-to-body ratio)
Resolution
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
720 x 1600 pixels, 20:9 ratio (~254 ppi density)
OS
Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat), MIUI 11
Android 16, HyperOS 3, up to 4 major Android upgrades
Chipset
Qualcomm MSM8953 Snapdragon 625 (14 nm)
Unisoc T8300 (6 nm)
CPU
Octa-core 2.0 GHz Cortex-A53
Octa-core (2x2.2 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU
Adreno 506
Mali-G57 MC2
RAM
3GB/4GB
4GB/6GB
Storage
32GB /64GB
MMC 5.1
64GB/128GB
Card Slot
microSDXC (uses shared SIM slot)
Lens 1
13 MP, f/2.0, 1/3.1", 1.12µm, PDAF
32 MP, f/2.0, (wide), 1.12µm, AF
Features
Dual-LED dual-tone flash, panorama, HDR
Video
1080p@30fps, 720p@120fps
Lens 2
Auxiliary lens
Lens 1
5 MP, f/2.0
8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Video
1080p@30fps
1080p@30fps
Features
HDR
Capacity
Li-Po 4100 mAh, non-removable
6300 mAh
Charging
15W wired
7.5W reverse wired
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Fingerprint (side-mounted), accelerometer, compass
Virtual proximity sensing
Loudspeaker
Yes
Yes
3.5mm jack
Yes
24-bit/192kHz audio
Yes
WLAN
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
4.1, A2DP, LE
5.4, A2DP, LE
GPS
Yes, with A-GPS, GLONASS, BDS
GPS, GLONASS, GALILEO, BDS
Radio
FM radio
FM radio, recording
USB
microUSB 2.0, USB On-The-Go
USB Type-C 2.0, OTG
Performance
GFXBench: 3.4fps (ES 3.1 onscreen)
Display
Contrast ratio: 1503:1 (nominal), 2.714 (sunlight)
Camera
Photo / Video
Loudspeaker
Voice 67dB / Noise 70dB / Ring 81dB
Audio quality
Noise -94.6dB / Crosstalk -94.3dB
Battery life
Endurance rating 119h