Acer DX650 Technical specifications
|Main display: TFT 64k colors 240 x 320 px (2,80″) 143 ppi|
|Samsung S3C6410 533 MHz|
|Li-Ion 1260 mAh|
|Internal memory: 256 MB|
|RAM memory: 128 MB|
|2 Mpx, 1600x1200 px|
|Dimensions:||109,6 x 59 x 15,6 mm|
|Standard battery:||Li-Ion 1260 mAh|
|Stand-by (max.):||2G: 150 h|
|Talk time (max.):||2G: 4 h|
|Internal memory:||256 MB|
|RAM memory:||128 MB|
|Memory cards:||microSD, microSDHC|
|Operating system:||MS Windows Mobile 6.1 Pro|
|Processor:||Samsung S3C6410 533 MHz|
|Main display:||TFT 64k colors 240 x 320 px (2,80″) 143 ppi|
|Addidtional display:||Mono / OLED 128 x 96 px (1,27″)|
|Digital camera:||2 Mpx, 1600x1200 px|
|Bluetooth:||Yes, v2.0 EDR|
|GPRS:||Yes, class 10|
|EDGE:||Yes, class 10|
|WiFi:||Yes, v802.11 b/g|
|Push To Talk:||-|
Bluetooth - A small very low power transmitter/receiver that allows a mobile to connect to nearby devices such as ear pieces and car loudspeakers.
EDGE (also known as Enhanced GPRS or EGPRS) is a data system used on top of GSM networks. It provides nearly three times faster speeds than the outdated GPRS system. The theoretical maximum speed is 473 kbps for 8 timeslots but it is typically limited to 135 kbps in order to conserve spectrum resources. Both phone and network must support EDGE, otherwise the phone will revert automatically to GPRS.
Wi-Fi is a WLAN (Wireless Local Area Network) technology. It provides short-range wireless high-speed data connections between mobile data devices (such as laptops, PDAs or phones) and nearby Wi-Fi access points (special hardware connected to a wired network).
The older variant of Wi-Fi, 802.11g, is capable of providing speeds of up to 54Mbps and is backwards compatible with 802.11b (providing up to 11Mbps).
The more recent standard is called 802.11n (offering speeds of up to 150Mbps per channel or up to 600Mbps in total). It can be used in the 2.4 GHz or 5 GHz frequency bands, though a receiver needs to have dual-band antenna to operate on both.
2013 saw the birth of the latest (so far) Wi-Fi ac standard. It allows for speeds of up to 500 Mbps per channel and over 1Gbps in total. Wi-Fi 802.11ac operates only on the 5GHz band.
Wi-Fi is much faster than any data technologies operating through the cellular network like GPRS, EDGE and even UMTS and HSDPA.
The range covered by a Wi-Fi access point is from 30 to 100 meters indoors while outdoors a single access point can cover about 650 meters.
Prepaid involves paying upfront for a service and receiving or using that service afterwards. Purchasing a prepaid card for cell phones tops up credit onto a cell phone. This credit can then be used for phone calls, text messages, and other services.