Comparison between:
- OKWU Pi
- OKWU Omicron
- OKWU Sigma
- OKWU Pi Plus

Brand and model

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

OKWU PiOKWU OmicronOKWU SigmaOKWU Pi Plus
OKWU PiOKWU OmicronOKWU SigmaOKWU Pi Plus

Design

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

Width---71 mm
7.1 cm
0.233 ft
2.795 in
Height---141 mm
14.1 cm
0.463 ft
5.551 in
Thickness6.5 mm
0.65 cm
0.021 ft
0.256 in
--7 mm
0.7 cm
0.023 ft
0.276 in
Weight138 g
0.3 lbs
4.87 oz
--136 g
0.3 lbs
4.8 oz
Volume---70.08 cm³
4.26 in³
ColorsRose-gold
Gold
GrayBlack
Blue
Gold
Black
Blue
Body materialsMetalMetalPlasticMetal
Plastic

SIM card

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

SIM card typeMicro-SIM
Nano-SIM / microSD
Micro-SIM
Nano-SIM / microSD
-Micro-SIM
Number of SIM cards2222
Features---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
W-CDMAW-CDMA 2100 MHzW-CDMA 2100 MHzW-CDMA 2100 MHzW-CDMA 2100 MHz
LTELTE 850 MHz
LTE 1800 MHz
LTE-TDD 2300 MHz (B40)
LTE 850 MHz
LTE 1800 MHz
LTE-TDD 2300 MHz (B40)
LTE 850 MHz
LTE 1800 MHz
LTE-TDD 2300 MHz (B40)
LTE 850 MHz
LTE 1800 MHz
LTE-TDD 2300 MHz (B40)

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+
LTE Cat 4
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4

Operating system

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

Operating system (OS)Android 6.0.1 MarshmallowAndroid 6.0 MarshmallowAndroid 7.0 NougatAndroid 7.0.1 Nougat

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.

SoCMediaTek MT6735MediaTek MT6737TMediaTek MT6737MQualcomm Snapdragon 212 MSM8909 v2
Process technology28 nm28 nm28 nm28 nm
CPUARM Cortex-A53ARM Cortex-A53ARM Cortex-A53ARM Cortex-A7
CPU bits64 bit64 bit64 bit32 bit
Instruction setARMv8-AARMv8-AARMv8-AARMv7
Level 1 cache memory (L1)32 KB + 32 KB32 KB + 32 KB32 KB + 32 KB-
Level 2 cache memory (L2)512 KB
0.5 MB
512 KB
0.5 MB
512 KB
0.5 MB
-
CPU cores4444
CPU frequency1300 MHz1500 MHz1250 MHz1260 MHz
GPUARM Mali-T720 MP1ARM Mali-T720 MP2ARM Mali-T720 MP1Qualcomm Adreno 304
GPU cores121-
GPU frequency600 MHz600 MHz550 MHz456 MHz
RAM capacity1 GB3 GB2 GB3 GB
RAM typeLPDDR3LPDDR3LPDDR3-
RAM channelsSingle channelSingle channelSingle channel-
RAM frequency640 MHz733 MHz640 MHz-

Storage

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

Storage8 GB32 GB16 GB16 GB

Memory cards

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

TypesmicroSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC

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
5.5 in
139.7 mm
13.97 cm
5 in
127 mm
12.7 cm
5 in
127 mm
12.7 cm
Width2.45 in
62.26 mm
6.23 cm
2.7 in
68.49 mm
6.85 cm
2.45 in
62.26 mm
6.23 cm
2.45 in
62.26 mm
6.23 cm
Height4.36 in
110.69 mm
11.07 cm
4.79 in
121.76 mm
12.18 cm
4.36 in
110.69 mm
11.07 cm
4.36 in
110.69 mm
11.07 cm
Aspect ratio1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
Resolution720 x 1280 pixels1080 x 1920 pixels720 x 1280 pixels720 x 1280 pixels
Pixel density294 ppi
115 ppcm
401 ppi
157 ppcm
294 ppi
115 ppcm
294 ppi
115 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area---69.07 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch

Sensors

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

SensorsProximity
Light
Accelerometer
Fingerprint
Proximity
Light
Accelerometer
Fingerprint
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 typeCMOSCMOSCMOSCMOS
Flash typeDual LEDDual LEDDual LEDDual LED
Image resolution3264 x 2448 pixels
7.99 MP
4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
Video resolution1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
Secondary rear camera - 2 MP---

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.

Sensor typeCMOSCMOSCMOSCMOS
Image resolution1600 x 1200 pixels
1.92 MP
2560 x 1920 pixels
4.92 MP
2560 x 1920 pixels
4.92 MP
3264 x 2448 pixels
7.99 MP
Video resolution640 x 480 pixels
0.31 MP
1280 x 720 pixels
0.92 MP
1280 x 720 pixels
0.92 MP
640 x 480 pixels
0.31 MP
Video FPS30 fps30 fps30 fps30 fps
---Secondary front camera - 5 MP

Audio

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

SpeakerLoudspeakerLoudspeakerLoudspeakerLoudspeaker
Earpiece
NXP Smart PANXP Smart PA--

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
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
Wi-Fi Direct
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct

Bluetooth

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

Version4.04.04.04.0
FeaturesA2DPA2DPA2DPA2DP

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
VoLTE
Computer sync
OTA sync
Tethering
VoLTE
Computer sync
OTA sync
Tethering
VoLTE
Computer sync
OTA sync
Tethering
VoLTE

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+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
FLAC
MIDI
MP3
OGG
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
MKV
MP4
WebM
3GPP
AVI
MKV
MP4
WebM
3GPP
AVI
MKV
MP4
WebM
3GPP
AVI
MKV
MP4
WebM

Battery

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

Capacity2000 mAh3000 mAh2450 mAh2500 mAh
TypeLi-PolymerLi-PolymerLi-PolymerLi-Ion
2G talk time10 h
600 min
0.4 days
16 h
960 min
0.7 days
--
2G stand-by time180 h
10800 min
7.5 days
200 h
12000 min
8.3 days
--
3G talk time10 h
600 min
0.4 days
16 h
960 min
0.7 days
--
3G stand-by time180 h
10800 min
7.5 days
200 h
12000 min
8.3 days
--
FeaturesNon-removableNon-removableNon-removableRemovable
 OKWU PiOKWU OmicronOKWU SigmaOKWU Pi Plus