Comparison between:
- Microsoft Lumia 640 Dual SIM
- Mediacom PhonePad Duo S531U
- Mediacom PhonePad Duo G501
- Mediacom PhonePad Duo S510

Brand and model

Information about the brand, model and model alias (if any) of a specific device.

Microsoft Lumia 640 Dual SIMMediacom PhonePad Duo S531UMediacom PhonePad Duo G501Mediacom PhonePad Duo S510
Microsoft Lumia 640 Dual SIMMediacom PhonePad Duo S531UMediacom PhonePad Duo G501Mediacom PhonePad Duo S510
Model aliasRM-1077---

Design

Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.

Width72.2 mm
7.22 cm
0.237 ft
2.843 in
73.8 mm
7.38 cm
0.242 ft
2.906 in
72.6 mm
7.26 cm
0.238 ft
2.858 in
70.1 mm
7.01 cm
0.23 ft
2.76 in
Height141.3 mm
14.13 cm
0.464 ft
5.563 in
147.95 mm
14.795 cm
0.485 ft
5.825 in
142.9 mm
14.29 cm
0.469 ft
5.626 in
143 mm
14.3 cm
0.469 ft
5.63 in
Thickness8.8 mm
0.88 cm
0.029 ft
0.346 in
8.15 mm
0.815 cm
0.027 ft
0.321 in
9 mm
0.9 cm
0.03 ft
0.354 in
6.9 mm
0.69 cm
0.023 ft
0.272 in
Weight145 g
0.32 lbs
5.11 oz
147 g
0.32 lbs
5.19 oz
152 g
0.34 lbs
5.36 oz
120 g
0.26 lbs
4.23 oz
Volume89.78 cm³
5.45 in³
88.99 cm³
5.4 in³
93.37 cm³
5.67 in³
69.17 cm³
4.2 in³
ColorsWhite
Black
Orange
Cyan
Gray
Gold
Gray
Red
Blue
Green
Yellow
Gold
Gray
Body materialsPlasticPlasticPlastic-

SIM card

The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.

SIM card typeMicro-SIMMicro-SIM
Mini-SIM
Mini-SIM
Micro-SIM
Micro-SIM
Number of SIM cards2222
FeaturesDual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)

Networks

A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.

GSMGSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 900 MHz
UMTS 2100 MHz
UMTS 900 MHz
UMTS 2100 MHz
UMTS 900 MHz
UMTS 2100 MHz

Mobile network technologies and bandwidth

Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.

Mobile network technologiesUMTS
EDGE
GPRS
HSPA+
UMTS
EDGE
GPRS
HSPA+
UMTS
EDGE
GPRS
HSPA+
UMTS
EDGE
GPRS
HSPA+

Operating system

Operating system is the system software, which manages and controls the functioning of the hardware components of the device.

Operating system (OS)Microsoft Windows Phone 8.1
Microsoft Windows 10 Mobile
Android 4.4.2 KitKat
Android 5.0 Lollipop
Android 4.4.2 KitKatAndroid 4.4 KitKat
Android 5.0 Lollipop
User interface (UI)Lumia Denim---

System on Chip (SoC)

A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.

SoCQualcomm Snapdragon 400 MSM8926MediaTek MT6592MMediaTek MT6582MMediaTek MT6592M
Process technology28 nm28 nm28 nm28 nm
CPUARM Cortex-A7ARM Cortex-A7ARM Cortex-A7ARM Cortex-A7
CPU bits32 bit32 bit32 bit32 bit
Instruction setARMv7ARMv7ARMv7ARMv7
Level 1 cache memory (L1)16 KB + 16 KB32 KB + 32 KB32 KB + 32 KB32 KB + 32 KB
Level 2 cache memory (L2)1024 KB
1 MB
1024 KB
1 MB
512 KB
0.5 MB
1024 KB
1 MB
CPU cores4848
CPU frequency1200 MHz1400 MHz1300 MHz1400 MHz
GPUQualcomm Adreno 305ARM Mali-450 MP4ARM Mali-400 MP2ARM Mali-450 MP4
GPU cores1424
GPU frequency-600 MHz416 MHz600 MHz
RAM capacity1 GB1 GB512 MB1 GB
RAM type-LPDDR3-LPDDR3
RAM channels-Single channelSingle channelSingle channel
RAM frequency-666 MHz533 MHz666 MHz

Storage

Every mobile device has a built-in storage (internal memory) with a fixed capacity.

Storage8 GB16 GB4 GB8 GB

Memory cards

Memory cards are used in mobile devices for expanding their external storage capacity.

TypesmicroSD
microSDHC
microSDXC
microSD
microSDHC
microSD
microSDHC
microSD
microSDHC

Display

The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.

Type/technologyIPSIPSIPSIPS
Diagonal size5 in
127 mm
12.7 cm
5.3 in
134.62 mm
13.46 cm
5 in
127 mm
12.7 cm
5 in
127 mm
12.7 cm
Width2.45 in
62.26 mm
6.23 cm
2.6 in
66 mm
6.6 cm
2.45 in
62.23 mm
6.22 cm
2.45 in
62.26 mm
6.23 cm
Height4.36 in
110.69 mm
11.07 cm
4.62 in
117.33 mm
11.73 cm
4.36 in
110.71 mm
11.07 cm
4.36 in
110.69 mm
11.07 cm
Aspect ratio1.778:1
16:9
1.778:1
16:9
1.779:11.778:1
16:9
Resolution720 x 1280 pixels720 x 1280 pixels480 x 854 pixels720 x 1280 pixels
Pixel density294 ppi
115 ppcm
277 ppi
108 ppcm
196 ppi
77 ppcm
294 ppi
115 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area67.77 %71.15 %66.62 %68.97 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch
Corning Gorilla Glass 3
ClearBlack display
---

Sensors

Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.

SensorsProximity
Light
Accelerometer
Compass
Proximity
Light
Accelerometer
Proximity
Light
Accelerometer
Proximity
Light
Accelerometer

Rear camera

The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.

Sensor typeCMOS BSICMOSCMOSCMOS
Sensor size3.6 x 2.7 mm
0.18 in
---
Pixel size1.103 µm
0.001103 mm
---
Crop factor9.61---
Aperturef/2.2---
Focal length and 35 mm equivalent2.91 mm
28.01 mm *(35 mm / full frame)
---
Flash typeLEDLEDLEDLED
Image resolution3264 x 2448 pixels
7.99 MP
4160 x 3120 pixels
12.98 MP
2592 x 1944 pixels
5.04 MP
3264 x 2448 pixels
7.99 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Scene mode
Autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode

Front camera

Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.

Aperturef/2.4---
Image resolution1280 x 720 pixels
0.92 MP
2560 x 1920 pixels
4.92 MP
1600 x 1200 pixels
1.92 MP
2560 x 1920 pixels
4.92 MP
Video resolution1280 x 720 pixels
0.92 MP
---

Audio

Information about the type of speakers and the audio technologies supported by the device.

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece

Radio

The radio in a mobile device is a built-in FM radio receiver.

RadioYesYesYesYes

Tracking/Positioning

Information about the positioning and navigation technologies supported by the device.

Tracking/PositioningGPS
A-GPS
GLONASS
Wi-Fi
BeiDou
GPS
A-GPS
GPS
A-GPS
GPS
A-GPS

Wi-Fi

Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

Wi-Fi802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11b
802.11g
802.11n
802.11b
802.11g
802.11n
Wi-Fi Hotspot

Bluetooth

Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.

Version4.04.04.04.0
FeaturesA2DP
AVRCP
GATT
HFP
HID
MAP
OPP
PAN
PBAP
A2DPA2DP
LE
A2DP

USB

The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.

Connector typeMicro USBMicro USBMicro USBMicro USB
Version2.02.02.02.0
FeaturesCharging
Mass storage
Charging
Mass storage
Charging
Mass storage
Charging
Mass storage

Headphone jack

The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.

Headphone jackYesYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
DLNA
Computer sync
OTA sync
Infrared
Tethering
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering

Browser

A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.

BrowserHTML
HTML5
CSS 3
HTML
HTML5
CSS 3
HTML
HTML5
CSS 3
HTML
HTML5
CSS 3

Audio file formats/codecs

Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.

Audio file formats/codecsAAC
AMR
eAAC+
MIDI
MP3
WMA
WAV
AAC
AAC+
AMR
eAAC+
MIDI
MP3
WMA
WAV
AAC
AMR
eAAC+
MIDI
MP3
WMA
WAV
AAC
AMR
eAAC+
MIDI
MP3
WMA
WAV

Video file formats/codecs

Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.

Video file formats/codecs3GPP
AVI
H.263
H.264
MP4
VC-1
3GPP
AVI
H.263
H.264
MP4
WMV
Xvid
3GPP
AVI
MP4
Xvid
3GPP
H.263
H.264
MP4
WMV
Xvid

Battery

The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.

Capacity2500 mAh2500 mAh2200 mAh2000 mAh
TypeLi-IonLi-IonLi-IonLi-Ion
2G talk time27 h 30 min
27.5 h
1650 min
1.1 days
---
2G stand-by time840 h
50400 min
35 days
150 h
9000 min
6.3 days
-120 h
7200 min
5 days
3G talk time20 h 30 min
20.5 h
1230 min
0.9 days
---
3G stand-by time840 h
50400 min
35 days
120 h
7200 min
5 days
-100 h
6000 min
4.2 days
FeaturesRemovableRemovableRemovable-

Specific Absorption Rate (SAR)

The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.

Head SAR (USA)0.81 W/kg---
Body SAR (USA)0.16 W/kg---
 Microsoft Lumia 640 Dual SIMMediacom PhonePad Duo S531UMediacom PhonePad Duo G501Mediacom PhonePad Duo S510