XIAOMI Mi 4i

                                              XIAOMI Mi 4i

Xiaomi Mi 4i is the latest device of Xiaomi Mi series which is selfie standard smartphone.Ultimately it is a great phone of Xiaomi as it has no SD card slot . After all it's battery charging system  is super  with quick charging system.

NETWORK features : 
LTE(4G) / HSPA (3G) / GSM(2G)
2G band :  GSM ( 850 / 900 / 1800 / 1900 ) for SIM 1 & SIM 2
3G  band : HSDPA ( 850 / 1900 / 2100 ) for SIM 1 & SIM 2
4G band : LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) for SIM 1 & SIM 2
Speed HSPA, LTE
Announcement date : April 2015.
Released date : available in market since  April 2015.
Device Dimensions : ( 138.1 x 69.6 x 7.8 ) mm. (5.44 x 2.74 x 0.31 ) inch
Total Weight : 130 gm (4.59 oz).
Micro dual SIM . Dual stand-by.
DISPLAY category : IPS LCD capacitive touchScreen with 16M colors.
 Size of monitor : 5 inches (~71.7% screen to body ratio)
Resolution ( 1080 x 1920 ) pixels (~441 ppi pixel density)
Multitouch : Support.

Operating system : Android OS, v 5.0.2 (Lollipop)
Chipset : Qualcomm MSM8939 Snapdragon 615
CPU  : Quad-core 1.7 GHz Cortex-A53 & quad-core 1.1 GHz Cortex-A53
GPU Adreno 405
MEMORY card slot : No
Internal storage : 16 GB,
RAM : 2GB
Primary Camera : 13 MP, { 4128 x 3096 } pixels, dual-LED (dual tone) flash,autofocus.
Camera features :  Touch focus , Geo-tagging, , Face/smile detection, Sweep panorama, HDR.
Video quality : 1080p@30fps continuous auto focus.
Secondary Camera : 5 MP , 720p video.
Alert types sound : WAV ringtone,Vibration , MP3 ringtone
Loudspeaker : Yap.
3.5mm jack : Yes.
Wi-Fi : Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
Bluetooth :  v4.1, A2DP
GPS  with A-GPS, GLONASS, Beidou.
Radio : FM radio with RDS.
USB  port : micro USB v2.0, USB Host
Sensors feature : Accelerometer, gyro, compass, proximity
Message type :  SMS, MMS, Email, Push Mail, IM

Browser : HTML5
Java : not available.
Battery feature : Fast battery charging: 40% in 60 min (Quick Charge) . 3120 MAh Li-Ion  battery.
Talk time : Up to 35 h (3G).
Device Colors : Black, White, Yellow, Blue, Pink.

By Arif Hasan Shuvo

Blackberry Z3

                                    Blackberry Z3

NETWORK Technology :
GSM / HSPA
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 900 / 1900 / 2100
Speed :  HSPA

Announced date : February 2014.
Available now in market.

BODY Dimensions : { 140 x 72.8 x 9.3 } mm , (5.51 x 2.87 x 0.37 in)
Weight(only device) : 164 g (5.78 oz)

Micro-SIM support.

Display types : TFT Capacitive touchscreen, 16M colors.
Monitor Size : 5.0 inches (~67.6% screen-to-body ratio).
Resolution 540 x 960 pixels (~220 ppi pixel density)
Multitouch available.
Operating System : BlackBerry OS 10.2.1, upgradable to v10.3.1
Chipset : Qualcomm MSM8230 Snapdragon 400
CPU : Dual-core 1.2 GHz Krait 200
GPU : Adreno 305
MEMORY feature : Card slot microSD, up to 32 GB
Internal storage :  8 GB, 1.5 GB RAM.
Back Camera : 5 MP, 2592 х 1944 pixels, autofocus, LED flash, Geo-tagging.
Video : 1080p video recording with continuous auto focus.

Secondary camera :  1.1 MP, 720p video recording.
Alert types (sound) : Vibration; MP3, WAV ringtones.
Loudspeaker : Yes.
3.5mm jack : Yes.
Wi-Fi : Wi-Fi 802.11 b/g/n, hotspot.
Bluetooth v4.0, A2DP, LE.
GPS : Yes, with A-GPS.
Radio : FM radio.
USB : microUSB v2.0.
Sensors features : Accelerometer, proximity.
contact ; SMS, MMS, Email, Push Email, IM, BBM 6.
Java  : support, java MIDP 2.1.
Browser HTML5.
- BlackBerry maps . Organizer Document . Viewer Photo .Viewer/editor Video editor.

- MP4/H.264/WMV player.
BATTERY  2500 MAh Non-removable Li-Ion battery.
Stand-by time : Up to 384 h.
Talk time : Up to 15 h 30 min . Music play : Up to 84 h
Colors : Black
 By Arif Hasan Shuvo