Side-by-side technical data

Xiaomi Mi A1 (Mi 5X) vs Xiaomi Redmi 4 (4X)

Comparison between Xiaomi Mi A1 (Mi 5X) and Xiaomi Redmi 4 (4X): camera, battery, fast charging, display, performance and colors, side by side. More phones from Xiaomi.

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Mi A1 (Mi 5X)

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Redmi 4 (4X)

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The verdict

Your pick: Xiaomi Mi A1 (Mi 5X), ahead on Design & display, Performance & hardware, Camera and Connectivity. Unless Battery & charging decides it for you.

Category
Category	Mi A1 (Mi 5X)	Redmi 4 (4X)
Design & display	5.8	5.1
Performance & hardware	3.0	2.2
Camera	3.9	3.3
Connectivity	4.4	3.5
Battery & charging	2.3	3.9

Which one is for you?

Xiaomi Mi A1 (Mi 5X), if you care about…

Wi-Fi Standards: Wi-Fi 802.11a/b/g/n/ac; against Wi-Fi 802.11 b/g/n
Display Pixel Density: 403 ppi; against 294 ppi
Body Thickness: 7.3 mm; against 8.7 mm
Display Diagonal: 5.5″; against 5″

Xiaomi Redmi 4 (4X), if you care about…

Battery Capacity: 4,100 mAh; against 3,080 mAh
Weight: 150 g; against 165 g

Specification comparison

Show differences only

Performance

Specification	Mi A1 (Mi 5X)	Redmi 4 (4X)
Processor Model	Qualcomm Snapdragon 625	Qualcomm Snapdragon 435
Processor Process Size	14 nm Best value	28 nm
Graphics GPU	Qualcomm Adreno 506	Qualcomm Adreno 505
Storage Type	eMMC 5.1	eMMC 5.1
Maximum CPU Clock	2 GHz Best value	1.4 GHz
Maximum Storage Capacity	64 GB	64 GB
CPU Description	Octa-core 2.0 GHz Cortex-A53	Octa-core 1.4 GHz Cortex-A53
Processor Type	Octa-Core	Octa-Core
RAM Capacity	4 GB	4 GB
Expandable Storage	Yes	Yes

Design

Specification	Mi A1 (Mi 5X)	Redmi 4 (4X)
Body Colors	Black, Gold, Rose Gold, Red	Black, Gold
Body Thickness	7.3 mm Best value	8.7 mm
Body Width	75.8 mm	70 mm
Body Height	155.4 mm	139.2 mm
Weight	165 g	150 g Best value
Usable Surface	70.1 %	70.7 % Best value
Body Materials	Glass, Aluminium Alloy	Glass, Aluminium Alloy, Plastic

Battery

Specification	Mi A1 (Mi 5X)	Redmi 4 (4X)
Battery Capacity	3,080 mAh	4,100 mAh Best value
Battery Type	Li-Po	Li-Po
Fast Charge Power	10 W	—
Battery Features	Fast Charging	—
Talk time	—	36 h
Standby time	—	432 h
Music playback time	—	87 h

Display

Specification	Mi A1 (Mi 5X)	Redmi 4 (4X)
Display Aspect Ratio	16:9	16:9
Display Technology	IPS LCD	IPS LCD
Display Diagonal	5.5″ Best value	5″
Display Horizontal Resolution	1,080 px Best value	720 px
Display Vertical Resolution	1,920 px Best value	1,280 px
Display Pixel Density	403 ppi Best value	294 ppi
Display Contrast Ratio	1,570 :1	—
Display Features	Gorilla Glass 3	Gorilla Glass

Sensors

Specification	Mi A1 (Mi 5X)	Redmi 4 (4X)
Fingerprint Sensor Placement	Rear	Rear

Sensor

Specification	Mi A1 (Mi 5X)	Redmi 4 (4X)
Sensor Features	Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor	Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass

Software

Specification	Mi A1 (Mi 5X)	Redmi 4 (4X)
Operating System	Android 7.1	Android 6
OS Family	Android	Android
OS Version	7.1 Best value	6

Connectivity

Specification	Mi A1 (Mi 5X)	Redmi 4 (4X)
SIM Configurations	Dual Nano-SIM	Nano-SIM + Micro-SIM
Cellular Bands	2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, 4G LTE B38, 4G LTE B40	2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B38, 4G LTE B39, 4G LTE B40, 4G LTE B41
Cellular Technologies	GSM, HSPA, LTE, UMTS	GSM, HSPA, LTE
Wi-Fi Standards	Wi-Fi 802.11a/b/g/n/ac Best value	Wi-Fi 802.11 b/g/n
Wi-Fi Features	Dual Band, Wi-Fi Direct	Wi-Fi Direct
Bluetooth Version	Bluetooth 4.2	Bluetooth 4.2
Bluetooth Profiles	A2DP, LE	A2DP, LE
Navigation Systems	GPS, GLONASS, BeiDou	GPS, GLONASS, BeiDou
Connectivity Features	3.5 mm Audio Jack, Infrared, FM Radio, USB Type-C	3.5 mm Audio Jack, Infrared, FM Radio
USB Version	USB 2.0	USB 2.0
SAR American Head	1.75 W/kg	0.77 W/kg Best value
SAR American Body	0.76 W/kg Best value	0.83 W/kg

Audio

Specification	Mi A1 (Mi 5X)	Redmi 4 (4X)
Audio Features	A2DP, LE, Loudspeaker	A2DP, LE, Loudspeaker

Technical

Specification	Mi A1 (Mi 5X)	Redmi 4 (4X)
Model numbers	MDG2, MDI2	2016060, 2016090, MAG138, MAE136, Redmi 4, Redmi 4X