Compare 5 products

	Acer Liquid Z630S	Coolpad Cool Play 6	HTC Desire 628	Motorola KRZR K1	Nokia Lumia 820

Hardware
Operating system	Android 5.1	N/A	Android 5.1	Proprietary OS	Windows Phone 8
CPU clock speed	1.3 GHz	N/A	1.3 GHz	N/A	1.5 GHz
CPU cores	8-core	8-core	8-core	Single-core	Dual-core
CPU model	MediaTek MT6753	N/A	MediaTek MT6753	N/A	Qualcomm Snapdragon S4 MSM8960
GPU model	ARM Mali-T720 MP4 GP	N/A	ARM Mali-T720 MP4 GP	N/A	Qualcomm Adreno 225
RAM memory	3 GB	N/A	3 GB	N/A	1 GB

Display
Screen size	5.5 in	5.5 in	5.0 in	1.9 in	4.3 in
Touchscreen	yes	yes	yes	no	yes
Number of colors	16.7M	N/A	16.7M	262K	16.7M
Panel type	LCD	LCD	LCD	N/A	OLED
Resolution	1280 x 720 px	N/A	1280 x 720 px	176 x 220 px	800 x 480 px
Technology	IPS LCD	IPS TFT	IPS TFT	CSTN	AMOLED
Pixel density	267.0 ppi	N/A	294.0 ppi	N/A	217.0 ppi
HDR	no	no	no	no	no
Multi touch	yes	N/A	yes	N/A	yes
Dual screen support	N/A	N/A	no	yes	no
Scratch resistant display	N/A	N/A	no	no	no

Cellular
Wireless network (Wi-Fi)	yes	N/A	yes	no	yes
Wireless networking standard	802.11b 802.11g 802.11n	N/A	802.11b 802.11g 802.11n	N/A	802.11a 802.11b 802.11g 802.11n
Data transmission	HSPA+	N/A	HSPA+	N/A	HSPA+
Navigation system	GPS	N/A	GLONASS	N/A	GLONASS
2G GSM	yes	N/A	yes	yes	yes
GSM frequencies	850 MHz 900 MHz 1800 MHz 1900 MHz	N/A	850 MHz 900 MHz 1800 MHz 1900 MHz	N/A	850 MHz 900 MHz 1800 MHz 1900 MHz
3G UMTS	yes	N/A	yes	no	yes
UMTS frequences	850 MHz 900 MHz 1700 MHz 1900 MHz 2100 MHz	N/A	850 MHz 900 MHz 1900 MHz 2100 MHz	N/A	N/A
4G LTE	yes	yes	yes	no	yes
LTE frequencies	700 MHz 800 MHz 1800 MHz 1900 MHz 2100 MHz 2600 MHz	N/A	800 MHz 850 MHz 900 MHz 1700 MHz 1800 MHz 1900 MHz 2100 MHz 2600 MHz 2300 MHz 2500 MHz	N/A	800 MHz 900 MHz 1800 MHz 2100 MHz 2600 MHz
Mobile hotspot	yes	N/A	yes	N/A	N/A