If you want a very small e-reader, the BOOX Picco is not the only option—but “small” covers different compromises. The XTEINK X4 is the pocket-first alternative, the BOOX Palma 2 pairs a phone-shaped body with a larger screen, and the Kobo Clara BW is a conventional 6-inch reader. The X4’s production has ended, so treat it as an option only if you can verify stock and support where you live.
How small is the BOOX Picco?
BOOX lists the Picco’s screen at 3.97 inches and its body at 105.5 × 62 × 5.5 mm. Those are manufacturer specifications, not independent measurements of reading comfort or performance. Use them as a size reference: all three alternatives below have larger listed screens, so none is a like-for-like screen-size replacement.
Compare the three alternatives
| Reader | Screen and resolution | Body and weight | Lighting and controls | Storage and content | Water resistance | Availability caveat |
|---|---|---|---|---|---|---|
| XTEINK X4 | 4.3 inches, 220 PPI, per XTEINK’s regional product reference | 114 × 69 × 5.9 mm; 77 g, per that reference | Front lighting: not stated in the cited XTEINK reference; physical page-turn buttons | 16GB with microSD support; EPUB, TXT and image formats, per the regional reference | Not stated in the cited XTEINK reference | XTEINK says original X4 production ended in August 2026, with no restock forecast; local stock is not established |
| BOOX Palma 2 | 6.13 inches; resolution not stated on the cited BOOX product page | 159 × 80 × 8.0 mm; weight not stated on the cited BOOX product page | Front lighting and physical controls: not stated in the cited BOOX product page | Storage and supported formats: not stated in the cited BOOX product page | Not stated in the cited BOOX product page | Regional availability is not established by the cited BOOX product page |
| Kobo Clara BW | 6-inch Carta 1300 HD; 1448 × 1072 resolution on Kobo’s UK specification page | Body dimensions and weight: not stated on the cited Kobo specification pages | Front lighting and physical controls: not stated on the cited Kobo specification pages | 16GB, per Kobo’s product page; formats not stated on the cited specification pages | Waterproof protection, per Kobo’s product page | Features can differ by region; the cited resolution and USB-C details are from the UK specification page |
BOOX’s and Kobo’s cited pages do not establish every comparison field shown as “not stated.” Those entries should not be read as proof that a feature is absent. The cited specifications also do not provide a consistent independent test of speed, battery life, reading comfort or value, so this comparison sticks to listed product details.
Choose the XTEINK X4 only if pocketability comes first
Among the three alternatives, the X4 has the smallest listed body and weight: 114 × 69 × 5.9 mm and 77 g in XTEINK’s regional product reference. Its 4.3-inch, 220 PPI screen is larger than the Picco’s listed 3.97-inch screen, while physical page-turn buttons and microSD support are useful distinctions for readers who want tactile controls or expandable storage.
Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstall#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
The catch is decisive: XTEINK says original X4 production ended in August 2026 and gives no restock forecast. That statement does not prove that every retailer or region is out of stock, but it does mean you should not assume new units are generally available. Before buying, check that the seller has stock, is authorized, offers clear return terms and warranty coverage, and can provide current firmware and support information. The regional product reference is not proof that a particular configuration is sold in your market.
Choose the BOOX Palma 2 for a bigger phone-shaped screen
BOOX lists the Palma 2 at 6.13 inches and 159 × 80 × 8.0 mm. Its phone-shaped format may suit someone who wants a mobile-device shape but considers the Picco’s 3.97-inch screen too small. The trade-off is straightforward: it is substantially larger in both screen diagonal and listed body dimensions, so it is not the choice here for the smallest possible reader.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
The cited BOOX product page does not establish the Palma 2’s weight, resolution, storage, supported formats, lighting, controls, water resistance or regional stock. Check the specifications for the exact version offered where you plan to buy rather than assuming those details from the form factor.
Choose the Kobo Clara BW for a conventional 6-inch reader
Kobo describes the Clara BW as a 6-inch Carta 1300 HD e-reader with 16GB of storage and waterproof protection. Kobo’s UK specification page lists a 1448 × 1072 resolution and USB-C. It is a compact conventional reader, not a pocket-sized, same-screen-size replacement for the Picco.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Kobo’s product information is model-specific, and its listed features can differ by region. Confirm the specification for your local model before purchase; the resolution and USB-C details cited here come from the UK page.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which one fits your priorities?
- Smallest listed body and lightest listed weight: XTEINK X4, with the important qualification that production ended in August 2026 and current local stock is uncertain.
- Phone-shaped device with a larger screen: BOOX Palma 2, at 6.13 inches and 159 × 80 × 8.0 mm according to BOOX.
- Traditional 6-inch reader with cited waterproof protection: Kobo Clara BW, with regional specification differences to verify.
If you are comparing these with a larger e-reader you already own, decide first whether pocketability or a more spacious screen matters more. A single reader’s comment about looking for the “tiniest ereader” illustrates that preference, but it is not evidence of a broader buying trend.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
