Phone Comparison - ZTE Nubia Z7 mini vs Samsung Galaxy S5 mini Duos vs Microsoft Lumia 640 Dual SIM

general General Info

Manufacturer ZTE Samsung Microsoft
Announced July 2014 August 2014 March 2015
Status Available - July 2014 Available - August 2014 Available - April 2015
Price - - Rs. 8,999 ($132.34) [Similarly Priced]
Colors Black, White, Red, Green, Yellow Charcoal Black, Shimmery White Yes
Form Factor Candybar Candybar Candybar
Dimension 140.9 x 69.3 x 8.2 mm
(5.55 x 2.73 x 0.32 in)
- 141.3 x 72.2 x 8.8 mm
(5.56 x 2.84 x 0.35 in)
Weight 143 g (5.04 oz) - 145 g (5.11 oz)
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA HSDPA 850 / 900 / 1900 / 2100
4G Network LTE 1800 / 2100 / 2600 - -
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM
Build Features - - Fingerprint sensor
- IP67 certified - dust and water resistant
- Water resistant up to 1 meter and 30 minutes
-

hardware Hardware and OS

OS Android OS, v4.4.2 (KitKat) Android OS, v4.4.4 (KitKat) Microsoft Windows Phone 8.1 with Lumia Denim
Processor Quad-core 2.0 GHz Krait 400, Qualcomm MSM8974AA Snapdragon 801 Quad-core 1.4 GHz Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU Adreno 330 - Adreno 305
RAM 2 GB 1.5 GB 1 GB
Internal Memory 16 GB 16 GB 8 GB
External Memory microSD, up to 64 GB microSD, up to 64 GB microSD, up to 128 GB

display Display

Type Capacitive touchscreen Super AMOLED capacitive touchscreen IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display
Colors 16M colors 16M colors 16M colors
Size 5.0 inches 4.5 inches 5.0 inches
Resolution 1080 x 1920 pixels (445 ppi) 720 x 1280 pixels (326 ppi) 720 x 1280 pixels (294 ppi)
Screen-to-Body Ratio 69.19% - 67.43%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio No FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 13 MP, 4128 x 3096 pixels 8 MP, 3264 x 2448 pixels 8 MP, 3264 x 2448 pixels
Flash LED flash LED flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama Auto focus, 1/4'' Sensor Size
Video 1080p@30fps 1080p@30fps 1080p@30fps
Front Camera 5 MP, 1080p@30fps [Similar] 2.1 MP, 1080p@30fps [Similar] 1 MP, 720p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, HSUPA, LTE HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA 42.2/5.76 Mbps
Bluetooth v4.0, A2DP v4.0, A2DP, EDR, LE v4.0, A2DP
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, DLNA, hotspot
USB microUSB v2.0 microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS, Beidou
Browser HTML5 HTML5 HTML5

memory User Memory

Internal 16 GB, 2 GB RAM 16 GB, 1.5 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 64 GB microSD, up to 128 GB

Apps Sensors

Fingerprint fingerprint not supported fingerprint supported fingerprint not supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Li-Ion Battery Li-Ion Battery Li-Ion Battery
Capacity 2300 mAh 2100 mAh 2500 mAh
Stand by Up to 580 h (3G) - Up to 840 h (2G)
Up to 840 h (3G)
Talk Time Up to 30 h (3G) - Up to 27 h 30 min (2G)
Up to 20 h 30 min (3G)