This is a brilliant calculator from the Xiaomi ecosystem! Deerma JX01 has a huge 10″ LCD notepad, and you won’t need paper anymore

A classic desktop calculator is useful, but for more complex calculations you still need to jot down intermediate results, formulas, or notes somewhere. Deerma JX01 from the Xiaomi ecosystem solves this very simply. It combines a 12-digit calculator with a large LCD writing surface, so you can calculate and write on one compact device.

A Handy Helper with Express Delivery

You can find the Deerma JX01 calculator on the AliExpress shopping portal. It’s located in a Polish warehouse, which means delivery in about 3 to 7 days and with no extra fees! The seller also lists a local warranty, service, and free returns within 15 days.

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Deerma JX01 Calculator

Return option within 15 days

PL warehouse

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19,52 €

16,31 €

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0,39 €more expensive than the average price

Cheapest 12,00 €Most expensive 18,68 €

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Buying on AliExpress for the first time? See the guide!

Updated 1. 10. 2026 on 07:34

TIPExpress delivery from a Polish warehouse without customs duty and VAT.

This product will be delivered to you express from a local Polish warehouse. Shipping from Poland usually takes 7-10 days and is handled by a courier. On delivery, you won’t pay any extra fees—no customs duty and no VAT.

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Buying on AliExpress for the first time?

This process is done through the AliExpress mobile app, where most people shop. Two things matter: don’t use Buy now and enter the coupon only in the order summary in the Promo code field. After you click Pay now, you can’t add it anymore.

1. Copy the code and click GET THE DISCOUNTIn our article, copy the coupon and click the button GET THE DISCOUNT. The link will take you directly to the product in the AliExpress app.
2. Use Add to cart, not Buy nowOn the product card, scroll down and click Add to cart. Don’t use the Buy now button—this skips the cart, so later you won’t have a place to enter the coupon. Before that, make sure the variant is correct: color, version, and whether it ships from an EU warehouse.
3. Continue to Checkout via the cartA pop-up will appear: Added to cart!—tap Check it out. If it disappeared, open the cart using the icon in the bottom-right corner. In the cart, check the product and quantity, then tap the red Checkout button. Only the items marked with the red circle are included.
4. Fill in your address and card, then look for Promo codeIn the order summary, first enter the delivery address and payment card at the top. Below that, there’s a line Promo code — expand it with the arrow on the right.

   

5. Paste the code and confirm ApplyIn the field Promo code paste the copied code and click the black Apply. The code is case-sensitive and must not contain spaces.

   

6. Check your savings and payIn the section Summary expand the line Saved — you’ll see the applied coupon there as AliExpress coupons/codes. Only when Total is really lower, click Pay now.

   

Apply the discount again in the order summary. After you click Pay now, you can’t add a coupon anymore. If Apply shows an error, the code has either expired, doesn’t apply to your item, or your order doesn’t meet the minimum amount.

Store Coupon also belongs in the same field. — a coupon from the seller itself, which isn’t always available and changes day to day. It can’t be combined with an AliExpress coupon, so try both and go with the one that gives you more. Coins are added automatically.

Calculator and Notepad in One Body

Deerma JX01 is especially interesting thanks to its 2 in 1. On the left side, you get a traditional calculator with large buttons and a clearly readable 12-digit display. It handles basic math operations, percentages, and memory functions—so it’s great for studying, home accounting, invoice preparation, or quick expense calculations.

The right side features an approximately 10-inch LCD writing pad. You can instantly record the result, lay out a formula, create a short task list, or jot down an important number during a phone call. No need to look for paper, a pen, or switch between the calculator and a notes app on your smartphone.

The large LCD surface can be erased repeatedly

The manufacturer states a lifespan of over 100,000 rewriting cycles. Once the surface is filled, you just press the eraser button and the screen is ready to use again. Such a solution can significantly reduce your consumption of paper notepads, especially when you often write down only temporary information while working or studying.

The display has a matte surface with low glare, which should be gentler on your eyes even during longer use. The package includes a low-friction touch pen, so writing should feel like a classic pen on paper. The stylus also has its own holder, so it shouldn’t be so easy to lose when carrying it in your bag.

Large buttons reduce the risk of typos

The calculator itself has spacious buttons with enough spacing. The design is made to limit accidental pressing of a neighboring button—something you’ll appreciate especially when quickly entering longer numbers. The large display also helps you verify entered values and reduces the risk of miscalculations.

Deerma JX01 is made from ABS material resistant to everyday scratches. Despite the large writing surface, it weighs only about 280 grams, so you can take it between school, the office, and home. The slim body takes up minimal space even on a smaller desk.

Ideal for use at school, in the office, and at home

For students, Deerma JX01 can be handy for math, physics, or accounting. You do the calculation on the calculator, and next to it you can write out the full process. In the office, it’s useful for calculating budgets, taxes, or invoices—you can also write a date, a customer name, or another task on the LCD pad.

At home, you can use it for planning monthly expenses, comparing prices, or creating a shopping list. Power is handled by a combination of a solar panel on the front side and a backup battery placed at the back. With sufficient light, the calculator uses solar energy, while the battery keeps it running even in low light. That means you don’t have to worry about regular charging via a cable.

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