Lenovo Tab 4 TB-7504X

Advantages: All that is not flawed.

Disadvantages: Short time. It is difficult to get a native cover.
The combined slot does not allow to use two SIM cards with a memory card.

Comment: Immediately from the box, the caller crashed - but the problem was solved with the update.

Advantages: Without going into the technical specifications (I’ll note only 2 GB of RAM), they are in the product description, I’ll just say that the tablet is quite powerful enough for everyday tasks of a regular user. Slim and narrow body, allows you to hold the tablet with one hand, although it is 7 inches. Bright IPS display with correct colors. Decent picture quality, especially the main camera. Availability of mobile Internet and 4G support. The absence of noticeable squeak in compression, or gaps in the assembly. 7 Android (although I would have sat on a stable sixth for now). Good sound, although the speaker is one.
In fact, the advantages are much more, but there is no point in writing everything, much has already been written.

Disadvantages: Unnecessary installed programs embedded in the firmware.
Lack of native covers manufacturer for sale, universal cover the camera. It would be great if the case and protective film on the display were bundled, as in the early models, even with an increase in cost.

Comment: Conclusion: the product turned out to be interesting, good in operation, hopefully and of decent quality. From what was at the time of the choice, only with 2 gigabytes of RAM, among this price category. I did not find any special disadvantages to regret the purchase. The quality of the tablet will show the lifetime. Willingly recommend to purchase!

Advantages: Android 7.0. When first turned on, it was updated, after a couple of days it was again updated. Almost no garbage in the form of non-erasable programs.

Qualitatively assembled, pleasant "soft-touch" body, looks good. For 7 inches is very compact. Fits into most pockets. The case is not slippery, the screen looks like it has an oleophobic coating (unlike the younger models TB-7304 of the same Tab 4 series). There are practically no prints.

2 sim cards. The presence of 3G and LTE, can be used as a phone, there are proximity sensors and light (work well). The sensitivity of the phone is average (one division less than on the phone with the same operator). There is a bug at the phone. directory: if you sort the list by last name, and the names of subscribers start with the last name, then the dialer crashes and gives an error, but the SMS does not come (it is treated with a third-party contact type +).

Wi-Fi and Bluetooth without any complaints.

Smart GPS. Positioned quickly, even with a "cold" start. Accuracy is not perfect, but it deserves a solid 4 (it is suitable for navigation without problems, unlike the Tab3 series, which had a problem there).

The volume is sufficient for use in the car (but without stock). The clarity is excellent. There is a dolby atmos. The sound quality in the headphones did not check.

The average speed is acceptable for "domestic" needs (I use it in the car: car launcher ag, navigation, radar detector, inclinometer, megaphone-tv, internet. Sometimes all at the same time, some of the programs in the background work). A half-second hitch at the start of programs (affects 1GB of RAM), then everything goes smoothly and without braking. No flights. Games have not tried, but I think that is not his option.

MicroUSB with OTG function. When charging, it is almost not heated even under good load. When using the maximum brightness manages to charge. Autonomous work is quite good (subjective assessment, I can’t give specific figures).

There is still a mode of several users (Multiuser, i.e., as in "Windows": several accounts on one computer). Not sure what is useful, but the device can.

Disadvantages: Of the 16GB, only 11 are available for recording software. In principle, it suffices if audio-video is written to an SD card. (On younger models from 8GB only 3 are available). Programs on SD "move."

2 SIM cards or 1 SIM card and memory card.

Cameras do not even want to comment. 5m and 2m. Crap for a tick.

Phone and SMS give an error. It is treated by a third-party program.

MicroUSB (it's time to switch to type-C). Charging is sooo long. Highly. Maybe it seems comparing with my phones with quick charge. Charger only 1A. Strange decision.

Brightness without stock. The sun becomes dumb.

No hdmi.

One speaker. He is for calls, he is for hands-free calling, he is for movies and music. Full monomony ...

Incomplete battery. Well, it's like everyone else (but I would like to ...)

The set in the box is poor as an ascetic life: the device itself, the charger and the cord. And that's it! No, not that the protective film or glass - there was not even a factory film covering the display.

Comment: Very good option for the money. If you do not play, then I think that the buyer will be satisfied. Perfect for my tasks.
It’s a good machine, but it still feels that almost nothing left of that very IBM’s IBM Lenovo, now it’s just China’s consumer goods, albeit mostly of decent quality. There is one more plus, although indirect and not directly related to this device: Lenovo’s customer support by phone really works and works very well, and this is important.

Advantages: 1. Modern
2. Installed 7 android, which is very happy
3. A good battery, keeps the charge at the specified time in accordance with the passport
4. Thin, light, narrow edges on the sides of the screen, pleasant sound with one speaker
5. A good microphone, when you call, everyone praises that you can hear well

Disadvantages: There are no covers for this model, there are universal ones, but there are no special ones yet, alas

Comment: I chose a tablet for myself, i.e. I cut in the search for those tablets that did not meet my requirements, just did not want to overpay for the extra functions. The tablet is not for children, especially you will not play, but for the rest of the functions it is! The Internet connects, the browser loads, besides not a small screen resolution when viewing pages.
You will call, you will hear in the handset a pleasant, soft sound of the opponent's voice, which indicates a good built-in speaker.
And on a trail, I’ll say that when used individually, I have enough charge for a couple of days. Not complaining!

Advantages: A good screen with good coverage, fingers slide effortlessly. Smartly works. Convenient to hold.
2 Gb of RAM and 16 Gb of memory is enough for most tasks. Both cameras on solid 4-ku! Support 4G / LTE.

Disadvantages: The back panel, though matte, but slippery. We need a cover or bumper, but they are not on sale yet.
There is only one speaker on the front panel. It is for calls and for music / video.But it is not particularly annoying, the volume is sufficient.

Comment: You can insert either 2sim cards or 1sim + microSD.
High-quality, good, budget tablet. More from him and did not expect for the money.