# NIIMBOT B21 Green 2-Inch Bluetooth Thermal Label Maker

Maker: The NIIMBOT B21 is a green Bluetooth thermal label printer for monochrome labels up to 2 inches wide. Its compact size and app-based label creation suit everyday organization and small-batch labeling, while customer feedback is mixed on print clarity and connectivity.

- [Original product page](https://best-deals.pro/product/niimbot-b21-green-bluetooth-thermal-label-maker)
- [View offer](https://best-deals.pro/visit/niimbot-b21-green-bluetooth-thermal-label-maker)
- Market: US
- Language: en-US
- Currency: USD
- Brand: NIIMBOT
- Model: B21
- Category: Computers > Printers / 3D & Scanners > Printers / 3D & Multifunction
- Price: 52.79 USD
- Previous price: 65.99 USD
- Discount: 20%
- Price checked: 2026-11-14T06:19:33.457Z
- Rating: 4.4 / 5
- Reviews: 1151

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing describes app-based label design and Bluetooth printing, with templates and batch-printing functions.
- Listed label widths are 0.8 to 2 inches, covering small organization and retail labeling tasks.
- Thermal printing avoids ink and toner, according to the listing. The claimed consumable is label paper.
- The manufacturer claims one charge supports four hours of work. The printer is also said to shut down after a 15-minute pause.

## Pros

- Compact listed dimensions and a weight of 11.2 ounces make it easier to keep near a desk or packing area.
- Thermal monochrome printing avoids replacing ink or toner, with label media remaining a required consumable.
- The app is described as offering templates, image recognition and batch printing.

## Cons

- Monochrome output is limited to black-and-white labeling rather than color graphics.
- The listing's claimed four-hour working time may not suit long, uninterrupted print sessions.

## Specifications

### Identity
- Brand: NIIMBOT
- Model: B21
- Color: Green
- Printer output: Monochrome
- Printing technology: Thermal
- Print resolution: 203DPI
- Maximum media size: 2 inches
- Media: Labels
### Connectivity and controls
- Wireless connection listed: Bluetooth
- Control methods listed: App
- Compatible devices listed: Smartphones
### Dimensions and installation
- Dimensions listed: 2.4"D x 3.7"W x 5.1"H
- Weight listed: 11.2 ounces
### Power and operation
- Battery working time per charge, claimed: 4 hours
- Automatic power-off pause, claimed: 15 minutes

## Before you buy

- Several listing details are inconsistent or unconfirmed: maximum media size is stated as 2 inches while the feature text specifies 0.8–2-inch label widths, and the listing also gives a 25x50 centimeters paper size. It separately claims 60 pages per minute for a label printer. Confirm the supported media and what the speed figure means before buying.

## A good fit for

- People organizing home, office or small-business items with monochrome labels.
- Users who want to design labels in an app and send print jobs over Bluetooth.
- Small retailers or makers labeling products, prices, barcodes or packages within the listed media width.

## Less suited to

- Buyers who need color printing or broad-format shipping labels.
- Anyone who requires consistently verified print clarity or dependable phone connectivity, given the mixed customer reports.

## Customer feedback

Customer feedback describes the printer as attractive, compact and handy for everyday labeling. Print clarity, functionality, connectivity and value draw mixed reactions: some customers report clear output and quick Bluetooth connection, while others mention blurry prints, connection problems with iPhones or iPads, and the unit ceasing to work after a year. Those issues matter for frequent or time-sensitive printing, especially since the listing gives no independent performance verification.
- Positive themes: Customers describe the design as cute and the printer as compact enough to fit in the hand.
- Positive themes: Some customers say it is handy for routine labeling and connects quickly over Bluetooth.
- Negative themes: Some customers report blurry printing, connection difficulties with iPhones or iPads, or the printer stopping after about a year.
- Negative themes: Some customers consider it overpriced.
- Mixed feedback: Print quality, functionality, connectivity and value receive mixed customer feedback.

## Frequently asked questions

### What kinds of labels can the NIIMBOT B21 print?
It is a monochrome thermal label printer. The listing describes labels for addresses, barcodes, prices, dates and organization, with stated widths from 0.8 to 2 inches.
### How does the B21 connect?
Bluetooth and app control are listed. Customer feedback on connectivity is mixed, including reports of trouble connecting to some Apple devices, so check compatibility with your phone before relying on it.
### Does it need ink or toner?
The listing says thermal printing uses label media rather than ink, toner or carbon tape. Labels are still a consumable.
### What comes with the printer?
The listing's built-in media field names labels, a Type-C cable and a user manual. Confirm the selected listing's package details, as no separate explicit package inventory was supplied.

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## Add-ons

- [Case for NIIMBOT B21/Pro/B1, for SUPVAN T50M Pro Label Maker Accessories \| Wireless Thermal Printer Holder, Labeling Tapes Roll Refills Storage, Home/Office Use, Mesh Pocket, Hard Case Only, Green](https://best-deals.pro/visit/niimbot-b21-green-bluetooth-thermal-label-maker)
- [NIIMBOT Thermal Label Maker Paper 50×30 mm 230 Labels/Roll White 3Packs, for B1 B21 B31 B3S K3 Label Maker](https://best-deals.pro/visit/niimbot-b21-green-bluetooth-thermal-label-maker)

## Images

![NIIMBOT B21 Green 2-Inch Bluetooth Thermal Label Maker — 1](https://best-deals.pro/i/H7XDGZZkzYFoCHq8okH81xOdEDAHBdO9MVTKh0i52r4k_rXcwmdedgx2syaF4aOF4cV6C0RX5fMKykEqRQYN94186HJH8PSvpFkqZqnSlINXLHQ67FleDDrE.jpg)

![NIIMBOT B21 Green 2-Inch Bluetooth Thermal Label Maker — 2](https://best-deals.pro/i/4YLV9ZIMAY1zBHzTpLq-wU6bIplU7WAMyYPX07w5gS9vxwRDe1IJN8vbcD-uvMpYo30XI7LZ8hC2DU0B3mj6pLtzzq4td_BkoVUFGKS4ppTaVse_K50fsLd3.jpg)

![NIIMBOT B21 Green 2-Inch Bluetooth Thermal Label Maker — 3](https://best-deals.pro/i/3Qf8wtW8zr44EfLuHQVOZwXdAuSnKH3mE_r4VZemaAWpg4ppxJ1jjW80gz3qVBh2EeJA4N_RKpShG9X_RcqGUcsnmju-1pacJC_tGaM4hx5N6yGHlD59CXXU.jpg)

![NIIMBOT B21 Green 2-Inch Bluetooth Thermal Label Maker — 4](https://best-deals.pro/i/0BuVvk800ARM470aakt51J-Z18D3j4R455rGiDWKUh0IHh7CqqTnCVdXeLQCyko9nZaVzzH9ZrUtUKCODnXaf7E4fOiqq94uoTSwsa_Yb9exhgLumDkosvdL.jpg)

![NIIMBOT B21 Green 2-Inch Bluetooth Thermal Label Maker — 5](https://best-deals.pro/i/OpZnDgu49OmSTYG_8RPil7VirovE-j1-pvh_MVNVzc9Zi6SjRGLukLoO5TMRBBCrVx5izm9UgIUV4ymMTmNfCc8pFaIXmZ-gIXgXvQzXC9asZeT6D-U8DNi4.jpg)

![NIIMBOT B21 Green 2-Inch Bluetooth Thermal Label Maker — 6](https://best-deals.pro/i/zdvZ76YrOrCwqFDklocQVBYMBkzHrgSapzw8E-eVc16qjDztTvMnKEAy_HvOuJY0ya33Ktn21E4AQHZoACiHGFzfv2BQ6t5jO5iskOWNMFE7nvO1wg6azOEY.jpg)

![NIIMBOT B21 Green 2-Inch Bluetooth Thermal Label Maker — 7](https://best-deals.pro/i/yMfhT53YsLioe8m2t990C4yDKGFrzNjZSuTlfASMDMswB3G7LOPaHS9f3LPjJcu-Z-aiW1r8sJV0MNeyecj_lMppp9xr7SB2K6UI6rXDiyBuLCGwBMEptY1q.jpg)