Xiaomi Redmi 1s vs Xiaomi Redmi 8a

Key Specs

Battery
Battery	2000 mAh	5000 mAh
Display
Display	4.7 inches (11.94 cm)	6.22 inches (15.8 cm)
Front Camera
Front Camera	1.6 MP	8 MP
Processor
Processor	Qualcomm Snapdragon 400 MSM8228	Qualcomm Snapdragon 439
RAM
RAM	1 GB	2 GB
Rear Camera
Rear Camera	8 MP	12 MP

Battery

Capacity
Capacity	2000 mAh	5000 mAh
Quick Charging
Quick Charging	-	Yes, Fast, 18W
Removable
Removable	-	No
Type
Type	Li-Polymer	Li-Polymer
USB Type-C
USB Type-C	-	Yes

Design

Build Material
Build Material	-	Back: Plastic
Colours
Colours	Black, Blue, Green, Grey, Red, Yellow	Midnight Black, Ocean Blue, Sunset Red
Height
Height	137 mm	156.4 mm
Thickness
Thickness	9.9 mm	9.4 mm
Waterproof
Waterproof	-	Yes, Splash proof
Weight
Weight	158 grams	188 grams
Width
Width	69 mm	75.4 mm

Display

Aspect Ratio
Aspect Ratio	-	19:9
Bezel-less display
Bezel-less display	-	Yes with waterdrop notch
Brightness
Brightness	-	400 nits
Display Type
Display Type	IPS LCD	IPS LCD
Pixel Density
Pixel Density	312 ppi	270 ppi
Resolution
Resolution	720x1280 px (HD)	720x1520 px (HD+)
Screen Protection
Screen Protection	-	Corning Gorilla Glass v5
Screen Size
Screen Size	4.7 inches (11.94 cm)	6.22 inches (15.8 cm)
Screen to Body Ratio (calculated)
Screen to Body Ratio (calculated)	64.27 %	81.48 %
Touch Screen
Touch Screen	Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Resolution
Resolution	1.6 MP, Primary Camera	8 MP f/2.0, Primary Camera(4.0" sensor size, 1.12µm pixel size)
Video Recording
Video Recording	1280x720 @ 30 fps	1920x1080 @ 30 fps

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General

Brand
Brand	Xiaomi	Xiaomi
Custom UI
Custom UI	MIUI	MIUI
Launch Date
Launch Date	September 1, 2014 (Official)	September 29, 2019 (Official)
Operating System
Operating System	Android v4.3 (Jelly Bean)	Android v9.0 (Pie)

Main Camera

Autofocus
Autofocus	Yes	Yes, Phase Detection autofocus
Camera Features
Camera Features	Auto Flash Face detection Touch to focus	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
Camera Setup	Single	Single
Flash
Flash	Yes, LED Flash	Yes, LED Flash
Image Resolution
Image Resolution	3264 x 2448 Pixels	4000 x 3000 Pixels
Resolution
Resolution	8 MP f/2.2, Primary Camera(28 mm focal length, 1.4µm pixel size)	12 MP f/1.8, Primary Camera(2.55" sensor size, 1.4µm pixel size)
Sensor
Sensor	-	IMX363, Exmor-RS CMOS Sensor
Settings
Settings	ISO control	Exposure compensation, ISO control
Shooting Modes
Shooting Modes	High Dynamic Range mode (HDR) Burst mode	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
Video Recording	1920x1080 @ 30 fps	1920x1080 @ 30 fps 1280x720 @ 30 fps

Multimedia

Audio Jack
Audio Jack	3.5 mm	3.5 mm
FM Radio
FM Radio	Yes	Yes, Wireless FM
Loudspeaker
Loudspeaker	Yes	Yes

Network & Connectivity

Bluetooth
Bluetooth	Yes, v4.0	Yes, v4.2
GPS
GPS	Yes with A-GPS, Glonass	Yes with A-GPS, Glonass
NFC
NFC	-	No
Network Support
Network Support	5G Not Supported in India, 3G, 2G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SAR Value
SAR Value	-	Head: 0.339 W/kg, Body: 1.000 W/kg
SIM 1
SIM 1	3G Bands: UMTS 2100 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available	4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM 2
SIM 2	2G Bands: GSM 1800 / 1900 / 850 / 900 MHz	4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5) 3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available
SIM Size
SIM Size	SIM1: Micro	SIM1: Nano, SIM2: Nano
SIM Slot(s)
SIM Slot(s)	Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
USB Connectivity	microUSB 2.0	Mass storage device, USB charging
VoLTE
VoLTE	-	Yes
Wi-Fi
Wi-Fi	Yes, Wi-Fi 4 (802.11 b/g/n)	Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features
Wi-Fi Features	Wi-Fi Direct, Mobile Hotspot	Wi-Fi Direct, Mobile Hotspot

Performance

Architecture
Architecture	-	64 bit
CPU
CPU	Quad core, 1.6 GHz, Cortex A7	Octa core (1.95 GHz, Quad core, Cortex A53 + 1.45 GHz, Quad core, Cortex A53)
Chipset
Chipset	Qualcomm Snapdragon 400 MSM8228	Qualcomm Snapdragon 439
Fabrication
Fabrication	28 nm	12 nm
Graphics
Graphics	Adreno 305	Adreno 505
RAM type
RAM Type	LPDDR2	LPDDR3

Sensors

Fingerprint Sensor
Fingerprint Sensor	-	No
Other Sensors
Other Sensors	Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope	Light sensor, Proximity sensor, Accelerometer, Compass

Storage

Expandable Memory
Expandable Memory	Yes, Up to 64 GB	Yes, Up to 512 GB
Internal Memory
Internal Memory	8 GB	32 GB
Storage Type
Storage Type	eMMC 4.5	eMMC 5.1
USB OTG
USB OTG	Yes	Yes
User Available Storage
User Available Storage	-	Up to 21 GB