Bigme B751C

Design and Build

The Bigme B751C uses a plastic chassis and glass screen, with silver metal edging.

Corners are rounded, but the edges are flat, and perpendicular to the sides.

There are some grooves on the rear panel to aid grip, but theses are only at one side, and the rest of the panel is quite smooth, and a little slippy (particularly when your hands are wet/sweaty).

Even the slightest tensile pressure on the tablet results in an audible creaking sound, which doesn’t inspire a lot of confidence in it’s build quality. However, I’ve been using my B751C for several months and it hasn’t broken. It still creaks, but still works perfectly.

There is a USB-C port on the left-hand edge, which can be used for both charging and data transfer. Next to it is the speaker grille. On the top edge (on the left) is the power button. And on the left edge is the MicroSD card tray, and a pinhole for the microphone.

A thin black bezel surrounds the screen, and on the left is a dark gray ‘spine‘, which houses the physical page turn buttons. I want to take a moment to mention how really well-made these page-turn buttons are to use, both from a tactile and audible perspective. Often, with e-readers and tablets, the page turn buttons can be quite unpleasant to use because they’re not consistent – you do not get the same sound or feeling every time they are pressed. And they can sometimes feel a bit wobbly, as though they are not set in their housing correctly. This is not the case with the Bigme B751C – you get the same satisfying click every single time.

Aesthetically-speaking, I think it looks okay. It’s not the most visually-appealing device (and the creaking is a little worrying) , but it’s certainly not the worst either. And because of the small screen, it is one of the lightest e-ink tablets available.

Hardware Specs

Under the bonnet is a MediaTek Hekio P35 octa-core processor with a clock speed of 2.3GHz.

There’s also 4Gb RAM and 64Gb of storage capacity (which can be extended up to 2Tb, using the MicroSD card slot).

In addition, it utilises Bigme’s proprietary Fast Refresh technology (xRapid). Essentially, this means that third-party apps can be configured to run at faster refresh rates than e-ink screens were originally designed for, which can make tasks like web browsing on e-ink a more pleasant experience.

SIDENOTE: Although xRapid means that performance of third-party apps is much-improved compared to e-ink tablets that do not use this proprietary technology, the performance is still nowhere near what you would expect from an LCD/OLED screen. For certain tasks (such as video) there are still inherent issues with image quality and ghosting. However, apps that do not require super-fast movement (such as scrolling down a webpage) are much smoother than on tablets without this technology.

Using the Geekbench 6 CPU Benchmark app, the B751C scored 192 in the single-core test, and 881 in the multi-core test (the mean average after three tests).

Whilst the B751C has some decent specs for a 7″ Android tablet, it scores low in CPU performance when compared to benchmarks from other tablets.

Screen

The screen is 7″ (slightly smaller than A6-sized) and has colour capabilities (Carta 1200 with Kaleido 3). It is flush with bezels.

It has a monochrome resolution of 1264 x 1680 (300dpi) and a colour resolution of 930 x 1240 (150dpi).

Kaleido 3 – and colour e-ink in general – does have some compromises (which I explore here), but on the whole the B751C implements colour really well.

One of the drawbacks of Kaleido 3 is that it makes the screen appear several shades darker than their monochrome counterparts. Monochrome e-ink tablets have a visibly ‘whiter‘ background. However, this inherent ‘darkness‘ is mitigated when the frontlight is turned on.

There are touchscreen capabilities, and a capacitive layer for stylus input (not Wacom). And a frontlight with temperature settings.

There is no rough paper-like texturing to the screen, which means the stylus slips across it a little too easily.

Other than the inherent darkness and other Kaleido 3 limitations (which is an issue with the underlying e-ink technology, and present on all colour e-ink tablets), the visuals of the screen are very nice. Although the tablet can be viewed clearly in well-lit environments, it is likely that you will need to activate the frontlight (if only on a low setting) to illuminate the screen enough to make it comfortable to work with when there is less ambient light. However, the non-Wacom stylus input layer, and slippy screen make the writing experience less enjoyable than other e-ink tablets.

Writing feel

The tactile experience of writing on the B751C isn’t very good at all.

And much of this is because (as mentioned previously), it does not use Wacom technology.

Wacom is a layer below the screen that converts pen strokes (from a Wacom-compatible stylus) into “ink” on me screen. It works really well, which is why all the best e-ink tablets use it.

Instead of Wacom, Bigme opted to use capacitive input, which is not terrible but doesn’t come close to Wacom in terms of practicality and quality.

For starters, the stylus has to have its own power source – this is usually in the form of a AAAA battery.

You have to press a button to turn it on every time you want to use it, which takes some getting used to (for example, if you stop writing for a few minutes, it turns itself off). And, if you’re traveling, you have to remember to take a spare battery with you just in case.

In addition, because the frontlight layer occupies the space between the surface layer and the e-ink layer, there is a minuscule gap between where the stylus touches the screen and where the strokes appear, almost as though you are writing slightly below the screen. For new users, this is so small that it may even be imperceptible, but for existing e-ink users that are accustomed to writing on a tablet without a frontlight, the difference can be a bit of a shock, and can require some time to adjust.

There is a noticeable latency when making strokes, with strokes shown on the screen lagging behind the pen movement.

In fairness, writing is okay (in that it ‘works’ – you can take notes on it).

But when compared to other e-ink tablets on the market, writing is not a very pleasant experience at all.

Hardware features

As well as the underlying hardware specs, the B751C has some additional hardware features that make the tablet more versatile.

As standard for most e-ink tablets, there’s support for both Wifi and Bluetooth connectivity. As well as connecting headphones, Bluetooth can also be used to connect other peripherals, such as third-party keyboards.

For further connectivity, the single USB-C port supports On-The-Go (OTG) connections, which means you can hook up a USB hub for the connection of peripherals and mass storage devices (hard drives, USB sticks etc.) In addition, there’s a MicroSD card slot, which can be used for additional storage capacity.

There’s a G-Sensor for automatically reorienting the screen between landscape/portrait when you rotate it physically.

And there’s also dual speakers and microphone. The microphone can be used for recording voice notes or for recording a meeting. As well as system sounds (such as notification alerts), the speakers can be used for Text-to-Speech (TTS) in the native reading app, or even listening to music/videos. However, don’t expect too much from the onboard speakers and mic – they’re very basic additions that are great for simple everyday use, but are not going to produce anything of production quality.

Overall, the additional hardware features provided on the B751C offers several additional use cases for the tablet beyond simply reading and note-taking. For example, you can record meetings and voice reminders, or listen to podcasts using Bluetooth headphones or the integrated speakers. You can increase the storage capacity using MicroSD or USB. You can even connect a Bluetooth keyboard for typed input.

Battery

The B751C has a 2300mAh battery, which is comparatively quite small – and this shows in the battery tests.

As mentioned previously, e-ink tablets with fast refresh technology are going to drain the battery much quicker than their less power-hungry counterparts.

The table below shows how much battery is depleted by performing certain operations for an hour.

Test (1hr)	B751C (% battery used)
Note-taking	6%
Reading	4%
Wifi On	+0%
Frontlight (medium)	+2%
Frontlight (full)	+8%

So, you could expect to drain about 6% of the battery per hour when note-taking, and 4% per hour when reading. If the frontlight is on a medium setting, expect to add another 2% per hour, and if it is on full, add an extra 8% per hour. Having Wifi on or off doesn’t make much of a difference (but remember this test was only an hour long, so it may make a difference over longer periods).

I calculate typical battery life from these figures by assuming 3 hours of note-taking and 2 hours of reading each day, with the Wif turned on for 3 hours, the frontlight on medium for 2 hours, and on full for 2 hours.

For the NA4C, this works out at about 46% of battery use per day, which would give you 2.2 days of use before it needed to be recharged.

For an e-ink tablet, the battery life of the B751C is very poor.

Accessories

The B751C shipped with a folio cover and a generic capacitive stylus (not Bigme-branded).

Stylus

It is almost cylindrical, with one side flattened to prevent it rolling on uneven surfaces. The flattened side has two buttons; one for power, and one for the eraser. Personally I don’t like these shaft buttons because I am prone to accidentally pressing them when writing.

It is made from metal, which makes it sturdy and durable, but also rather heavy. I also found the smooth surface difficult to grip – my fingers slid down the shaft. The balance of it also makes it quite uncomfortable to use – it is top-heavy because that is where the battery is inserted (by unscrewing the top of the shaft). There is an optional pen clip.

The stylus uses rather hard, replaceable nibs, which wear down with use. More than any other stylus I’ve used, I’ve found that the nibs on these pens are very prone to damage whilst being carried in a rucksack. They bend/break quite easily. I’ve had two of these pens (one with the Meebook P78 Pro, and one with the Bigme B751C) and both got damaged nibs from everyday transit (whilst inside the pen loop of the folio).

The tactile writing experience isn’t terrible, but its not all that pleasant either, particularly compared to e-ink tablets that use Wacom. There’s also noticeable latency when writing.

On the whole, I really don’t like using this stylus (or capacitive styluses in general). It’s slightly better than the Kobo stylus, but right down near the bottom of my preferences.

Folio

Like the stylus, the folio also feels generic and a bit cheap.

It is split into two section. The front cover is hard card, enveloped in a plasticky material on the exterior and a softer material on the interior. It also has a pen loop for the stylus. The rear cover is a bendy plastic tray, which the tablet is wedged into. It is held in place at three of the four corners, and the right edge only. The other sides are exposed, providing access to the power button, MicroSD tray, and USB port. Despite the sides being exposed, they are still protected due to the tray curling around the tablet slightly.

The two sections are glued together. Because the join is thin, the front panel slides around very easily, which adds to the feeling of cheapness.

The folio appears to provide adequate protection for the tablet (although, as mentioned previously, the stylus nibs damage very easily).

I can’t really fault the folio because it works, however, I just get a sort of ‘meh!’ feeling from it. There’s nothing nice about it, but it does the job okay.

Software

My review of this tablet should be read in conjunction with my review of the current firmware (see table below), which includes aspects such as the Operating System, User Interface, and Native Apps.

The hardware and software reviews have been separated because the firmware used at the time that this review was written may not be the same firmware being used currently. This could result in the review quickly becoming outdated. Also, as several tablets may use the same firmware, this would mean going back and updating every single tablet review from a particular manufacturer to account for the new firmware. By splitting them up, if there is a firmware update, I am able to make the updates on a single page.

Current versions of this brand’s firmware are shown in the table below, along with the tablets running them.

My rating	Firmware version	Tablets using this firmware
	4.6 (current version) Aug 2025	Bigme B1051C Bigme B7 Bigme B751C
Older Bigme firmware versions may be found here

Brand

For some people, it is also worth considering the brand as whole, including aspects like customer service, ecosystem, values, and criticisms.

My full overview of the Bigme brand can be found here, but I have provided a summary below.

Final Verdict

As a small colour e-ink device, the Bigme B751C is okay. I find reading on it to be very satisfying comfortable, and the page turn buttons are excellent and really enhance the reading experience.

But, for me, there’s too many cons and not enough pros.

Compared to other Android e-ink tablets, the performance is poorer, which means there is more likelihood of resource-hungry third-party apps being unusable. The writing experience is not very nice at all, the battery life is rubbish, and obviously the smaller screen means that it’s really only useful for quick notes. The folio and stylus feel cheap and tacky. And the software still needs some work.

Tablet Overview