BOOX Palma 3: What Onyx Confirms at $339.99, and What It Does Not

Phone-sized monochrome e-paper reader held in one hand, showing a page of text on a matte electronic paper screen.
Illustration (AI-generated).

Onyx put the BOOX Palma 3 on its own store on September 15, 2026, and the listing still reads Available Soon. The page shows From $319.99, while the store data behind it lists $339.99 for the United States and $319.99 for Hong Kong. Early coverage read those two figures as a price cut. They are regional prices for the same device. This guide sets out exactly what Onyx has published about the Palma 3, what changed since the Palma 2, and which claims circulating this week the company’s own specification sheet does not support.

What Onyx has published

The Palma 3 keeps the phone-shaped format that made the line unusual. Onyx lists a 6.13 inch ePaper glass screen with a flat cover lens, a resolution of 824 by 1,648 and 300 pixels per inch. Inside sit an octa-core processor with BOOX Super Refresh technology, 6 GB of RAM and 128 GB of storage, plus a microSD slot. The store description adds that the chip is built on a 4 nm process and that Google Play ships on the device.

Connectivity is Wi-Fi and Bluetooth 6.0, and the software is Android 16. The body measures 159 by 78 by 7.8 mm and weighs about 195 g. There’s a 3,950 mAh battery and a 16 MP rear camera with an LED flash. Onyx also lists a power button with fingerprint recognition, volume and page-turn buttons, a smart button, a speaker and dual microphones. The USB-C port doubles as an audio jack.

Regional prices and the rest of the Palma family

Onyx sells through one storefront with regional variants. The Palma 3 carries $339.99 for the United States and $319.99 for Hong Kong. The product page shows the lower of the two as a From price. Neither figure has a discount attached, and on September 18, 2026, you couldn’t order either variant.

Onyx lists the Palma 2 Pro at $399.99 for the United States, and that model is still available. For the Palma 2, Onyx’s store data carries $269.99 for the United States, but a comparison table on the Palma 2 product page still shows $249.99. Since the company’s pages disagree, treat any Palma 2 figure as unsettled. Don’t use it to work out how much the Palma 3 went up.

Changes since the Palma 2

Put the two specification sheets side by side and the list of differences is shorter than the launch coverage implies.

SpecificationPalma 2Palma 3
Screen6.13 in, 824 x 1648, 300 ppi6.13 in, 824 x 1648, 300 ppi
Operating systemAndroid 13Android 16
Bluetooth5.16.0
Memory and storage6 GB, 128 GB6 GB, 128 GB
Battery3,950 mAh3,950 mAh
Dimensions159 x 80 x 8.0 mm159 x 78 x 7.8 mm
Weightabout 170 gabout 195 g

The screen resolution, pixel density, memory, storage, camera and battery capacity all carry over unchanged. Three years of Android versions, a newer Bluetooth radio and a slightly narrower, slightly thinner body make up the visible upgrade. The weight moved the other way, by 25 g.

The panel question Onyx has not answered

Several reports describe the Palma 3 as using an E Ink Carta 1300 screen. Onyx doesn’t say so. The specification sheet reads only “6.13 inch HD ePaper glass screen with flat cover-lens”. The marketing copy says “the latest-gen B&W ePaper technology with sharper contrast” without naming a generation.

That’s odd, because Onyx names panel generations elsewhere. It calls the Palma 2 a Carta 1200 device and the smaller Go 6 a Carta 1300 device. You can compare the published hardware on our specification page for the BOOX Go 6, which is in the same pocket class at 6 inches and does carry a named panel. Until Onyx prints a generation for the Palma 3, the Carta 1300 claim stays unconfirmed.

Comparison of the BOOX Palma 2, Palma 3 and Palma 2 Pro showing listed price, screen, operating system and key hardware differences.

Stylus support needs the same caution

Reports this week said the Palma 3 adds stylus support. Onyx’s product page contains no reference to a stylus, a pen, handwriting or the InkSense accessory, and the box contents list only the device, a USB-C cable, a card tray tool, a quick start guide and a warranty card.

Onyx does sell a Palma with pen support: the Palma 2 Pro. That model’s description names InkSense Plus stylus support directly, along with a Kaleido 3 color screen, Android 15 and 8 GB of memory. It also supports 2G through 5G networks. If you want a pocket BOOX specifically to write on, look there, at least until Onyx publishes something different about the Palma 3.

Where the Palma 3 sits in the line

Three Palma models now share a storefront at three prices. The Palma 2 Pro, at $399.99, is the one with color, cellular and pen support. At $339.99, the Palma 3 is monochrome and Wi-Fi only but has the newest software. Onyx’s store shows every Palma 2 variant as unavailable, so the older model isn’t a live alternative for most buyers.

So the decision comes down to what you want the device to be. In my judgment, readers who want a distraction-light Android reader will prefer the Palma 3 mainly for its software age, because an Android 16 device starts its app-compatibility clock three versions later than an Android 13 one. Readers who want color, a SIM or a pen have no reason to wait for it at all.

What to confirm before you order

Onyx has not announced a shipping date, and both regional variants show as unavailable. Watch for three things when that changes. First, a named panel generation on the specification page, which settles the Carta 1300 question. Second, the United States price at launch, since the listed $339.99 is a pre-release figure and pre-release figures move. Third, whether the device reaches Onyx’s Amazon storefront, because that route usually decides how quickly buyers outside Asia can get one.

Anyone upgrading should know the Palma 3 is 25 g heavier than the Palma 2, with the same battery capacity, screen and memory. The extra weight comes from the redesigned body, so don’t expect longer runtime from the newer model.

Sources

Basis

Research-based: written from the published sources listed above, primary: BOOX. We have not used the products discussed ourselves, and any measurement quoted belongs to its source.

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