Comparison Digma PF-833 vs Digma PF-733

For digital photo frames, this is the diagonal of the LCD matrix that is actually visible. Measured in inches (inches).

Now on the market there are photo frames with such a diagonal: 6" and less, 7", 8", 9", 10" and more.

For photo frames, as well as for other types of electronic devices using LCD or other displays, the resolution is indicated in pixel points (for example, 800x600 pixels). The higher the resolution, the clearer and more realistic the picture on the frame screen.

Now on the market there are photo frames with the following resolution: 480x234, 640x480, 800x480, 800x600, 1024x768, 1600x900

This characteristic indicates the ratio of brightness levels between the brightest white and darkest black colours that the display displays. The higher the contrast level, the richer the displayed colour palette of the display.

The brightness of the display is determined by the brightness of the backlight and the panel throughput. The higher the brightness, the richer the image will be.

All photo frames support graphic formats, the so-called. "picture" files (for example - JPEG, GIF, BMP, PNG, etc.). Often photo frames are capable of playing sound (MP3, WMA, AAC, OGG, etc.) and video files (AVI, MPEG4, etc.). These models are usually noticeably more expensive and come with a built-in speaker/speakers.

Specified in megabytes. Usually, flash-type memory is used in modern digital photo frames. Sometimes, if the frame memory is not enough, it can be increased by removable flash cards.

Now on the market there are photo frames with such a volume of internal memory: 1 GB, 2 GB, 4 GB.

Many modern photo frames have a slot for flash memory cards. This allows you to view photos and videos, listen to music without the "mediation" of the computer. Exporting files from a PC in this case is not required - you can organize viewing of data from a camera, camcorder, etc. in a matter of seconds.

Modern photo frames support one of the following memory card formats: Secure Digital (SD), Compact Flash (CF), Memory Stick (MS), xD-Picture (xD), MultiMedia Card (MMC).

— Bluetooth. Technology of high-frequency (radio) communication. It is used for high-speed wireless connection of a PDA with peripheral devices — headphones, manipulators, etc. Unlike infrared ports, receiving and transmitting bluetooth modules do not have to be within line of sight.

— Wi-Fi (Wireless Fidelity). Broadband (high speed) wireless communication standard. Allows you to upload files from a computer to the photo frame quickly, without using cables, memory cards, etc. In some cases, allows you to control the functions of the photo frame directly from your computer.

— USB(Universal Serial Bus). Recently, more and more phones are equipped with a USB interface, which has long been used in computers and other devices. Currently, interface versions 1.1 and 2.0 are mainly used. USB 1.1 supports data transfer rates up to 12 Mbps, USB 2.0 up to 480 Mbps. Today, the third version of the interface is already being tested, which supports data transfer at speeds up to 4.8 Gbps. All versions are backward compatible with each other. In addition, devices can be charged via USB.

— FM radio. Allows you to receive radio signals in the FM band, you can enjoy listening to live broadcasts from your favorite talk shows, news, music. The signal can be output to both speakers and headphones.

— Built-in speakers. They allow you to save on the purchase of high-quality external speakers for the photo frame (this also applies to traditional computer monitors). Although built-in speakers usually provide worse sound quality than external audio systems, they are more convenient because they do not require additional connections, equipment settings, etc. However, some photo frames are equipped with ports for connecting external audio.

— AV output. A connector that allows you to connect a portable device to a TV through a conventional RF antenna input and play the video stored in the photo frame's memory on a large screen, view photos, etc.

— Connector 2.5 mm (mini-Jack). Connector for headphones. Unlike the usual 3.5 mm jack, today it is used relatively rarely in photo frames and related devices.

— Plug 3.5 mm (mini-Jack). The standard headphone jack used in most portable players decades ago. It is widely distributed even now, including in digital photo frames.