A1 Alpha vs Xiaomi Redmi 4

Compare recorded specifications, size and practical differences.

A1 Alpha

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Xiaomi Redmi 4

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Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

WidthRedmi 4: 5.8 mm narrowerRedmi 4: 70 mm · Alpha: 75.8 mm
Screen diagonalRedmi 4: 1.26 in smaller diagonalRedmi 4: 5 in · Alpha: 6.26 in
ChipsetUnisoc SC9863A (28nm) / Qualcomm MSM8940 Snapdragon 435 (28 nm)Alpha: Unisoc SC9863A (28nm) · Redmi 4: Qualcomm MSM8940 Snapdragon 435 (28 nm)
Rear camera layoutDual / SingleAlpha: Dual · Redmi 4: Single
DepthAlpha: 0.6 mm thinnerAlpha: 8.1 mm · Redmi 4: 8.7 mm
HeightRedmi 4: 12.5 mm shorterRedmi 4: 139.2 mm · Alpha: 151.7 mm

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

Front

Side

1. Alpha
Height
151.7 mm+12.5 mm versus Redmi 4
Width
75.8 mm+5.8 mm versus Redmi 4
Depth
8.1 mm

Weight
150 g
2. Redmi 4
Height
139.2 mm
Width
70 mm
Depth
8.7 mm+0.6 mm versus Alpha

Weight
150 g

Weight

Bars start at zero and share a scale within this chart.

1. Alpha150 g
2. Redmi 4150 g

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

Screen size

1. Alpha 6.26 in · 19:9 About 97.8 cm² rectangular area
2. Redmi 4 5 in · 16:9 About 68.9 cm² rectangular area

Alpha has approximately 41.9% more rectangular screen area than Redmi 4.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM by storage capacity and phone
Storage	Alpha	Redmi 4
32 GB	2 GB RAM	Unknown
64 GB	3 GB RAM	Unknown

Redmi 4: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 GB RAM 16 GB · 2 GB RAM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Alpha

NFC: See details Yes (64/3GB model only)
Headphone jack: Yes
Memory card support: See details microSD · up to 256 GB (uses shared SIM slot)

2. Redmi 4

NFC: Unknown
Headphone jack: Yes
Memory card support: See details microSD · up to 128 GB (uses SIM 2 slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded capacity

Bars start at zero and share a scale within this chart.

1. Alpha3200 mAh
2. Redmi 44100 mAh

+900 mAh versus Alpha

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. Alpha2. Redmi 4

Everyday essentials

Everyday essentials
Specification	Alpha	Redmi 4
Dimensions (HxWxD)	151.7 Х 75.8 Х 8.1 mm	139.2 Х 70 Х 8.7 mm
Weight	150 g	150 g
Technology	IPS LCD	IPS LCD
Screen size	6.26" inch	5" inch
Screen resolution	720 x 1520 px	720 x 1280 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	32GB 2GB RAM 64GB 3GB RAM	64 GB 4 GB RAM 32 GB 3 GB RAM 16 GB 2 GB RAM
Memory card support	microSD up to 256 GB (uses shared SIM slot)	microSD up to 128 GB (uses SIM 2 slot)
BatteryCapacity is not battery life. No endurance test is implied.	3200 mAh Non-removable Li-Ion	4100 mAh Non-removable Li-Po
Operating system OS	Android 9.0 (Pie)	Android 6.0.1 (Marshmallow) upgradable to 7.1.2 (Nougat); MIUI 10
Chipset	Unisoc SC9863A (28nm)	Qualcomm MSM8940 Snapdragon 435 (28 nm)
NFC	Yes (64/3GB model only)	Unknown
Headphone jack	Yes	Yes

Display

Display
Specification	Alpha	Redmi 4
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	97.8 cm2	68.9 cm2
Screen format	19:9 (height:width)	16:9 (height:width)
Screen to body ratio	82.1%	70.7%
PPI /points per inch/	269 PPI	294 PPI
Screen protection	Unknown	Corning Gorilla Glass (unspecified version)

Camera and Video

Camera and Video
Specification	Alpha	Redmi 4
Rear camera, main	13 MP Dual	13 MP Single
Camera specs	13 MP f/2.0 AF -2 MP f/2.4 depth sensor	13 MP PDAF f/2.0
Functions	LED flash HDR	LED flash HDR panorama
Video	1080p@30fps	1080p@30fps
Front camera, selfie	8 MP Single	5 MP Single
Specifications	8 MP f/2.0	5 MP f/2.2

Performance

Performance
Specification	Alpha	Redmi 4
Processor CPU	Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)	Octa-core 1.4 GHz Cortex-A53
Graphics processor GPU	IMG8322	Adreno 505
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	42175
GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	837
GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	2810
GeekBench 4 RenderScriptLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	2630
GeekBench 5 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	175
GeekBench 5 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	995

General specs

General specs
Specification	Alpha	Redmi 4
Release date	2019 August	2017 May
Colors	Black Green	Black Gold
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	150 EUR	110 EUR
Battery life	Unknown	Stand by time- Up to 432 h (3G) Talking time- Up to 36 h (3G) Music play - Up to 87 h
Body build	Unknown	Front glass aluminum body

Communication and Connectivity

Communication and Connectivity
Specification	Alpha	Redmi 4
SIM card	Hybrid Dual SIM (Nano-SIM dual stand-by)	Hybrid Dual SIM (Nano-SIM/ Micro-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100) 3(1800) 5(850) 7(2600) 8(900) 20(800) 38(2600)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100) 3(1800) 5(850) 7(2600) 8(900) 38(2600) 39(1900) 40(2300) 41(2500)
Speed	HSPA 42.2/5.76 Mbps LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps LTE-A (2CA) Cat6 300/100 Mbps
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n Wi-Fi Direct hotspot	Wi-Fi 802.11 b/g/n Wi-Fi Direct hotspot
GPS	Yes with A-GPS GLONASS	Yes with A-GPS GLONASS BDS
USB	microUSB 2.0 USB On-The-Go	microUSB 2.0
Bluetooth	4.2 A2DP LE	4.2 A2DP LE

Music and Audio

Music and Audio
Specification	Alpha	Redmi 4
Radio	FM radio	FM radio
Others	Active noise cancellation with dedicated mic	Active noise cancellation with dedicated mic

Other features

Other features
Specification	Alpha	Redmi 4
Dop	Sensors Fingerprint (rear-mounted) accelerometer gyro proximity compass	Sensors Fingerprint (rear-mounted) accelerometer gyro proximity compass Infrared port - Also known as Xiaomi Redmi 4X for China Malaysia Pakistan Indonesia

A1 Alpha vs Xiaomi Redmi 4

A1 Alpha

Xiaomi Redmi 4

Key differences

Physical size

Screen size

Memory variants

Practical features

1. Alpha

2. Redmi 4

Battery capacity

Specifications

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