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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchIf the BOOX Picco’s 3.97-inch screen is the reason you’re considering it, the closest alternative here is the pocket-first XTEINK X4—but its maker says production ended in August 2026, with no restock forecast. For a larger screen, consider the phone-shaped BOOX Palma 2; for a familiar, waterproof 6-inch reader, look at the Kobo Clara BW. None is a same-size substitute for the Picco, so choose by how much screen you’re willing to trade for pocketability.
How these readers compare
Manufacturer specifications show a clear size progression: the XTEINK X4 is slightly larger than the Picco, while the Palma 2 and Clara BW move into larger-screen territory. The figures below are published specifications, not results from a common independent test.
| Model | Screen | Body size and weight | Storage and content | Controls and lighting | Water protection and availability |
|---|---|---|---|---|---|
| BOOX Picco | 3.97 inches; resolution not stated in the cited BOOX specification | 105.5 × 62 × 5.5 mm; weight not stated | Not stated in the cited BOOX specification | Front lighting and physical controls not stated in the cited BOOX specification | Not stated in the cited BOOX specification |
| XTEINK X4 | 4.3 inches, 220 PPI; resolution in pixels not stated in the cited regional product reference | 114 × 69 × 5.9 mm; 77 g | 16GB with microSD support; EPUB, TXT and image formats | Physical page-turn buttons; front lighting not stated | Water protection not stated. XTEINK says original X4 production ended in August 2026, with no restock forecast; regional stock is not established. |
| BOOX Palma 2 | 6.13 inches; resolution not stated in the cited BOOX specification | 159 × 80 × 8.0 mm; weight not stated | Not stated in the cited BOOX specification | Front lighting and physical controls not stated in the cited BOOX specification | Water protection and regional availability not stated in the cited BOOX specification |
| Kobo Clara BW | 6 inches, Carta 1300 HD; 1448 × 1072 resolution on Kobo’s UK specification page | Dimensions and weight not stated in the cited Kobo specification | 16GB; content and store details vary by region and are not specified in the cited specification | Front lighting and physical controls not stated in the cited specification | Kobo lists waterproof protection. Features may differ by region. |
Sources: BOOX Picco specifications, XTEINK X4 regional product reference, XTEINK production-status notice, BOOX Palma 2 specifications, and Kobo Clara BW product information and Kobo UK specifications.
1. XTEINK X4: the pocket-first alternative
The X4 is the closest of these three to the Picco’s small-device premise. XTEINK’s regional product reference lists a 4.3-inch, 220 PPI display in a 114 × 69 × 5.9 mm body weighing 77 g. That is a slightly larger body and screen than BOOX lists for the Picco, but it remains the most pocket-focused option in this comparison.
#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.
What it offers
- Physical page-turn buttons, useful if you prefer not to tap the screen to advance.
- 16GB storage plus microSD support, according to the regional product reference.
- Support for EPUB, TXT and image formats, as listed by XTEINK.
Why buying it is uncertain
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 means you should verify that a unit is genuinely available before treating the X4 as a practical purchase. Check the seller’s authorization, return policy, warranty and firmware or support arrangements. The regional reference also may not describe every configuration sold in every market.
2. BOOX Palma 2: a larger screen in a phone-shaped device
BOOX lists the Palma 2 with a 6.13-inch display and a 159 × 80 × 8.0 mm body. Its phone-like shape makes it a fit for readers who want a mobile-device form while prioritizing a larger display over the Picco’s tiny footprint. It is substantially larger than the Picco by the published dimensions, so it is not the choice for someone whose main requirement is the smallest possible e-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 specification does not establish the Palma 2’s weight, resolution, supported formats, lighting details, water protection or regional availability. Confirm those model and market details before comparing it with another reader on features beyond screen and body size.
3. Kobo Clara BW: a conventional compact 6-inch reader
The Clara BW is the straightforward choice if you want a traditional e-reader rather than a phone-shaped device. Kobo describes it as a 6-inch Carta 1300 HD reader with 16GB storage and waterproof protection. Its UK specification page lists 1448 × 1072 resolution and USB-C. At 6 inches, it is not a same-size Picco replacement; it exchanges extreme pocketability for a more conventional reading area.
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 listed features are model-specific and can vary by region. Check the specifications for the version sold where you live, particularly if a particular port, waterproof rating or other feature matters to you. The cited material does not establish the Clara BW’s physical dimensions or weight.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which one should you choose?
- Choose the XTEINK X4 if small size and physical page-turn buttons matter most, and you can verify a legitimate available unit and adequate seller support.
- Choose the BOOX Palma 2 if you want a larger display in a phone-shaped form and are comfortable with a much larger device than the Picco.
- Choose the Kobo Clara BW if you want a conventional 6-inch reader, 16GB storage and Kobo-listed waterproof protection, rather than a truly tiny device.
These published specifications do not support a reliable comparison of speed, battery life, reading comfort or value. Price and marketplace listing status are also not established here; check current local listings and product terms before buying.
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.
