Acer Iconia B1-721 vs HTC Desire 728 Ultra
Acer Iconia B1-721
HTC Desire 728 Ultra
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800, 1900
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3G networkHSDPAHSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO
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4G network-LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speedHSDPA42.2 Mbps
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HSUPA speedHSUPA11.5 Mbps
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LTE speed-LTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-12016-8
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Status2014-12016-10
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Design
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SIMYesDual SIM (Nano-SIM, dual stand-by)
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Height199 mm157.9 mm
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Width122.3 mm77.8 mm
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Thickness11.4 mm7.9 mm
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Weight323 g153 g
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ColorsBlack/RedBlack Gold, Cappuccino Brown
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Display
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Display typeTFT capacitive touchscreenSuper LCD2 capacitive touchscreen
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Physical size7.0 inches5.5 inches
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Resolution600 x 1024 pixels720 x 1280 pixels
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Pixel density170 ppi267 ppi
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Display colors-16777216
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Multitouch-Yes
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Hardware
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CPUDual-core 1.3 GHzOcta-core 1.5 GHz ARM Cortex-A53
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ChipsetMediatek MT8312Mediatek MT6753
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GPUMali-400Mali-T720MP3
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Memory RAM1 GB3 GB
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Internal storage16 GB32 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB256 GB
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OS
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OSAndroid OS, v4.2 (Jelly Bean)Android OS, v5.1.1 (Lollipop)
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Main camera
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Main camera13 MP, f/2.2 , 28 mm
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Primary camera resolution640 x 480 pixels-
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Primary camera videovideo1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Camera features-Geo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Secondary cameraNo-
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Selfie camera5 MP, f/2.8 , 34 mm
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Selfie camera video-1080p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes, with stereo speakers
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NotificationsN/AVibration; MP3, WAV ringtones
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Multimedia
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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesv4.1
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Bluetooth A2DP-Yes
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GPSYesYes, with A-GPS
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging EmailEmailEmail
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Messaging IMIM-
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Messaging Push EmailPush EmailPush Email
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JavaYes, via Java MIDP emulatorNo
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Sensors-Accelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Po
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Battery capacity2955 mAh2800 mAh
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Battery removable-Non-removable
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Talk time--
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Standby time--