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Comparison World Vision T644D2 FM vs World Vision T645A FM

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World Vision T644D2 FM
World Vision T645A FM
World Vision T644D2 FMWorld Vision T645A FM
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Support for FM frequencies.
There is no built-in Wi-Fi adapter, must be purchased separately. The FM differs from the T644D3 model in the presence of buttons on the front panel.
Support for FM frequencies.
There is no built-in Wi-Fi adapter, must be purchased separately.
TypeTV tunerTV tuner
Digital tuner
DVB-T (terrestrial)
DVB-T2 (terrestrial)
DVB-C (cable)
DVB-T (terrestrial)
DVB-T2 (terrestrial)
DVB-C (cable)
Operating systemproprietary Smart systemproprietary Smart system
Connectivity and interfaces
IPTV support
Connectors
HDMI11
USB 2.022
AV output
Antenna input
Hardware
CPUNationalChip GX6705S5NationalChip GX6706S5
General
Video decodersH.264H.264
Audio decodersАС3, Dolby DigitalАС3, Dolby Digital
Screen
Remote control+programmable
Dimensions (WxHxD)120x63x28 mm148x90x30 mm
Added to E-Catalogmay 2024may 2024
Glossary

CPU

The model of the CPU installed in the media player.

This information is mainly of reference value: the processor is selected in such a way as to provide certain practical characteristics (maximum resolution, support for certain standards, embedded applications, etc.). So when choosing, you should focus primarily on these specifications. However, if you wish, knowing the processor model, you can find detailed data on it and evaluate the capabilities of the media centre to work with resource-consuming applications. This can be useful, in particular, if you choose an Android model (see above) and plan to use additional software intensively — the set of applications for this OS is very extensive, and some of them are quite demanding on system resources.

Also note that CPU data is often specified for advertising purposes — to emphasize that the device has a fairly advanced chip from a well-known brand. Among the most common brands of such processors are Allwinner, Amlogic, Rockchip, Realtek.

Remote control

Remote control included with media center or TV tuner. In addition to the classic remote control with basic controls, there are manipulators with additional features.

— QWERTY keyboard. Such remotes, in addition to the standard set of keys for controlling the player (see above), have an alphabetic keyboard similar to a computer one. This is relevant primarily for media centers with support for social media and photo services — a keyboard with letters is needed at least to enter a login/password.

— With sensors. A kind of remote control that uses sensors instead of classic buttons. Such equipment is somewhat more expensive, on the other hand, the sensors give the remote control a stylish appearance, and in some cases they are more convenient than buttons.

With voice control. A remote control equipped with a built-in microphone and capable of recognizing a specific set of voice commands. This control format is often more convenient than using buttons/sensors. At the same time, the set of supported commands can be different — sometimes it is quite limited compared to traditional remotes, sometimes vice versa (for example, it may be possible to type text using voice input); these nuances should be clarified separately. It also will be useful to find out the list of supported languages; note that English is almost guaranteed to be on this list, but Russian not always.

- Programmable. A universal rem...ote control that can be configured to work in conjunction with media players, TV tuners and other home electronics. By default, such remote controls are loaded with a database of signal codes for various types of equipment. To activate a specific device, they usually use a certain combination of button presses. Often programmable remote controls have teachable keys, a built-in gyroscope, an air mouse function and other similar options. The programmable buttons on these models are often dedicated to controlling the TV, eliminating the need for multiple remote controls. The service manual for them contains detailed programming instructions from the manufacturer.

— Programmable with voice control. An advanced type of programmable remote controls (see the corresponding paragraph) with a built-in microphone for issuing voice commands. Voice control is fully supported on set-top boxes running Android; together with conventional media players and TV tuners, you can make voice requests by speaking a phrase into the remote control. The exact implementation of voice control varies depending on the remote control model and the receiving device.

— Absent. The absence of a remote control is typical for network media players controlled from other devices — usually from a computer or from a mobile gadget through a special application.
World Vision T644D2 FM often compared
World Vision T645A FM often compared