Microsoft Lumia 638 vs Xiaomi Redmi A4

Share  

Comparing the Microsoft Lumia 638 vs Xiaomi Redmi A4 across performance, display, camera, battery, storage and user rating to help determine the better smartphone.

Here is the summary of the results:

Performance: Xiaomi Redmi A4 runs at a higher processing speed of 2.0 GHz, while Microsoft Lumia 638 runs at 1.2 GHz, making Xiaomi Redmi A4 the better performer.


Display: Xiaomi Redmi A4 offers a screen size of 6.88 inches, while Microsoft Lumia 638 offers 4.5 inches, making Xiaomi Redmi A4 the larger display of the two. Both Microsoft Lumia 638 and Xiaomi Redmi A4 feature the same IPS LCD display.


Rear Camera: Xiaomi Redmi A4 offers a higher rear camera resolution with 50 MP, while Microsoft Lumia 638 offers 5 MP, making Xiaomi Redmi A4 better for rear camera photography.


Battery: Xiaomi Redmi A4 offers a higher battery capacity with 5160 mAh, while Microsoft Lumia 638 offers 1830 mAh, making Xiaomi Redmi A4 better for longer battery life.


Storage: Microsoft Lumia 638 offers higher internal storage with 8 GB, while Xiaomi Redmi A4 offers 64 GB, making Microsoft Lumia 638 the better option for storage.


User Rating: Xiaomi Redmi A4 receives a higher user rating of 4.2, while Microsoft Lumia 638 has a rating of 4.

...read more
Microsoft Lumia 638
₹11,990
(Discontinued)
Xiaomi Redmi A4
₹7,965
(Out of Stock)
Add to Compare

Summary

Spec Score

N/A
76%

Release Date

18 Dec, 2014
27 Nov, 2024

Performance

N/A
Snapdragon 400
Snapdragon 4s Gen 2
(upto 1.2 GHz)
Octa Core (upto 2 GHz)
1 GB RAM
4 GB RAM

Display

N/A
4.5 inches (11.43 cm)
6.88 inches (17.48 cm)
IPS LCD
IPS LCD
480x854 px
720x1640 px (HD+)
N/A
120 Hz Refresh Rate

Rear Camera

N/A
5 MP
Primary Camera
50 MP
Wide Angle Primary Camera

Front Camera

N/A
N/A
5 MP
Wide Angle Lens

Battery

N/A
1830 mAh
5160 mAh
N/A
18W Fast Charging
N/A
No Wireless Charging

Storage

8 GB
64 GB
N/A
UFS 2.2

Expert Review

N/A
7.5/10

Pros

  • Device yet to be reviewed
  • Premium design
  • Smooth 120Hz display
  • Excellent battery life

Cons

  • Device yet to be reviewed
  • Incompatible with Airtel 5G
  • Selfie and low light performance could be better
  • Pre-installed apps

User Ratings

4/5
(603 ratings)
4.2/5
(23,529 ratings)

User Feedback

General

Launch Date

N/A
Nov 27, 2024
(Official)

Operating System

Windows Phone v8.1
Android v14

OS Updates

N/A
2 Years

Security Updates

N/A
4 Years

Custom UI

N/A
HyperOS

Performance

Performance Rating

N/A
Good

Chipset

Qualcomm Snapdragon 400 MSM8926
Qualcomm Snapdragon 4s Gen 2
View Details

Processor

Quad core, 1.2 GHz, Cortex A7
Octa core

2 GHz, Dual core, Cortex A78 1.8 GHz, Hexa Core, Cortex A55

Architecture (The higher, the better)

N/A
64 bit

Fabrication (The lower, the better)

N/A
4 nm

Graphics (GPU)

Adreno 305
Adreno 611

RAM

1 GB
4 GB / 6 GB

RAM Type

N/A
LPDDR4X

Display

Display Rating

N/A
Excellent

Display Type

IPS LCD
IPS LCD

Screen Size

4.5 inches  (11.43 cm)
6.88 inches  (17.48 cm)

Resolution

480x854 px
720x1640 px (HD+)

Peak Brightness

N/A
600 nits

Refresh Rate

N/A
120 Hz

Aspect Ratio

N/A
20:9

Pixel Density

218 ppi
260 ppi

Screen to Body Ratio (calculated)

64.59 %
84.18 %

Bezel-less Display

N/A
Yes with waterdrop notch

Screen to Body Ratio (claimed by the brand)

N/A
90 %

Design

Height

129.5 mm
171.88 mm

Width

66.7 mm
77.80 mm

Thickness

9.2 mm
8.22 mm

Weight

134 grams
212.3 grams

Build Material

N/A
Back: Mineral Glass

Water Resistance

N/A
Yes Splash proof IP52

Ruggedness

N/A
Dust proof

Rear Camera

Rear Camera Rating

N/A
Good

Resolution

5 MP
Primary Camera4x Digital Zoomf/2.428 mm focal length
50 MP
Primary Camera10x Digital Zoomf/1.8 Wide Angle

Autofocus

Yes
Yes

Flash

N/A
Yes LED Flash

Image Resolution

2592 x 1944 Pixels
8150 x 6150 Pixels

Settings

Exposure compensation ISO control
Exposure compensation ISO control

Shooting Modes

Macro Mode
Continuous Shooting
High Dynamic Range mode (HDR)
Film Camera

Camera Features

4 x Digital Zoom
Face detection
Touch to focus
10 x Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

1280x720 @ 30 fps
Full HD @30 fps

Front Camera

Front Camera Rating

N/A
Very Good

Resolution

N/A
5 MP
f/2.2 Wide Angle Primary Camera

Video Recording

N/A
Full HD @30 fps

Battery

Battery Rating

N/A
Very Good

Capacity

1830 mAh
5160 mAh

Battery Type

Li-ion
Li-Polymer

Quick Charging

N/A
Yes 18W Fast Charging

Storage

Internal Storage

8 GB
64 GB / 128 GB

Storage Type

N/A
UFS 2.2

Expandable Storage

Yes Up to 128 GB
Yes Up to 1 TB

Network & Connectivity

SIM Slot(s)

Single SIM
Dual SIM

SIM Type

SIM1: Micro
SIM1: Nano SIM2: Nano

Network Support

5G Not Supported 4G
5G 4G

VoLTE

N/A
Yes

SIM 1

4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39)
FD-LTE 1800(band 3) / 2600(band 7)
5G Bands:
FDD N1 / N3 / N5 / N8 / N28
TDD N40 / N78
4G Speed:
50 Mbit/s ↑ 150 Mbit/s ↓ (LTE category 4)
4G Bands:
TD-LTE 2300(band 40)
FD-LTE 1800(band 3)
View More

SIM 2

N/A
5G Bands:
FDD N1 / N3 / N5 / N8 / N28
TDD N40 / N78
N/A
4G Bands:
TD-LTE 2300(band 40)
FD-LTE 1800(band 3)
View More

Wi-Fi

Yes Wi-Fi 4 (802.11 b/g/n)
Yes Wi-Fi 5 (802.11 a/b/g/n/ac) 5GHz

Wi-Fi Features

N/A
Mobile Hotspot

Bluetooth

Yes v4.0
Yes v5.0

GPS

Yes with A-GPS Glonass
Yes with A-GPS

Multimedia

Audio Jack

3.5 mm
3.5 mm

Sensors

Fingerprint Sensor

N/A
Yes

Fingerprint Sensor Position

N/A
Side

Other Sensors

Accelerometer
Accelerometer