Why do we offer the buyer to choose a tablet, and not embed it in the robot?

- because the choice of a tablet depends on the purpose for which it is purchased.

If it is enough for you to view some landscape, the situation, the facial expressions of a person, without looking at small details, then it is enough to use an inexpensive tablet (see the table below). But, if you need to read the text written at school on the blackboard or on a sheet lying on the table, then you need an expensive tablet with a good camera and high processor speed.

The fact is that the maximum possible video resolution does not depend on the BotEyes software, but do depend on the following factors:

from the performance of the tablet in the robot's head;
from the resolution of the camera in the tablet;
from the bandwidth of the communication channel via the Internet;
depends on the computer performance of the remote client using the robot.

To give specific recommendations for choosing a tablet, we have compiled the following table:

	SAMSUNG Galaxy Tab A7 ("cheap tablet")	Lenovo Tab P11 TB-J606F	Apple iPad Air 2020	Samsung Galaxy Tab S7 ("good tablet")
Screen size	10.4'	11'	10.9'	11'
Number of cores	8	8	6	8
Processor frequency	2 GHz	2/1.8 GHz	2.1/ 1.8 GHz	3.1/ 2.4/ 1.8 GHz
RAM	3 Gb	6 Gb	-	6 Gb
Front/Rear camera resolution	5/8 Mp	8/13 Mp	7/12 Mp	8/13 Mp
Gyroscope	Yes	Yes	Yes	Yes
Max. image size without delay	960 х 720	1280 x 960	1920 x 1440	2560 x 1920
Max. response time to switching cameras or resolution	5 sec	3 sec	1 sec	1 sec
Autofocus setting time	good	a little better	not good*	even better
Approximate price	$270	$340	$720	$710

Notice:

* - the autodocking feature, saving videos and photos and video scaling may not work properly with iPad. The other features work very good.

You can use any other tablets, but it is important to consider the following:

The auto-docking function works only with those tablets that have a gyroscope.
In a tablet with a processor clock speed of 1 GHz, the video resolution will be no more than 320x240.
In tablets less powerful than those indicated in the table, scaling may not work at all.
In tablets that are less powerful than those indicated in the table, the delay between the movement of the robot and the video from the camera can reach several seconds.
The autofocus setting time is an important parameter, but it is not specified by tablet manufacturers in their specifications, so you need to try it.
Some tablets do not have the "Never" option in the "Turn off the screen after..." menu. It is better not to use them, but if you have already bought it, you will have to make a call several times so that the screen "wakes up".

The tablet should not be discharged below 30% or overheated, because in both cases, the tablet protection system automatically lowers the processor clock frequency and thereby reduces the video resolution or increases the delay of its transmission.

If you want to use the robot outside of the WiFi range, then the tablet must have 4G/5G support. At the same time, it is necessary to turn on the WiFi access point in the tablet and connect the wheel part of the robot to it. Another option may be to use a separate 4G-WiFi modem.

Huawei tablets were very good, but please note that in their latest versions, instead of Android OS, Huawei OS is used, which does not have Google Chrome and access to the Play Market, from where you will need to download the BotEyesWiFi program necessary to connect the robot to a WiFi network.

Note that the sound is transmitted well when using tablets of any type.