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Nelko P21 Bluetooth label maker review
The Nelko P21 is the cheapest good way to make app-designed labels. It fits in a pocket, needs no ink, and the Nelko app turns a phone into a label studio with templates and icons, plus QR codes and dates.
- Best as
- Best cheap Bluetooth label maker
- Prints on
- Direct thermal label rolls in many sizes and colours; no ink or ribbon.
- Cost per label
- Roughly 3¢ to 6¢ per label, the cheapest labels in this guide.
Imogen Pratt, updated 11-01-2026. Sources: Amazon listing (checked Oct 2026).
3D render, not a photoWhy it is the cheapest label you can print
Price per label comes first: thermal rolls cost a few cents a label, against 14¢ or more for laminated tape.
The app is its strongest point. The app supplies templates and icons. It also prints barcodes and QR codes and adds date stamps, which makes jar and freezer labels and classroom name tags quick, and it is one of the most-reviewed label makers on Amazon.
The listing says it is half the size and weight of a traditional label maker, so it lives in a drawer, not on a desk.
A month of meal prep, worked out
Label 25 freezer bags and jars a week and you print about 100 labels a month. At 3 to 6 cents a label, the rolls cost $3 to $6 a month, less than one laminated tape cassette.
Who buys one
- Meal-preppers dating freezer bags and jars every week.
- Parents labelling every school supply at the start of term.
- Anyone who wants app-designed labels for the least money.
Rolls and cost per label
Direct thermal label rolls in many sizes and colours; no ink or ribbon.
Roughly 3¢ to 6¢ per label, the cheapest labels in this guide. Try your own price.
- System
- Direct thermal label rolls, 203 DPI
- Input
- Nelko phone app (iOS, Android)
- Ink
- None needed
What a year of rolls costs
Rolls cost a few cents a label, and that adds up slowly over a year.
| How you use it | Labels | Labels a year | Spend a year |
|---|---|---|---|
| Light home use | 10 a month | 120 | $4 to $7 |
| Classroom or busy kitchen | 40 a month | 480 | $14 to $29 |
| Small craft business | 150 a month | 1,800 | $54 to $108 |
From box to first label
- Download the Nelko app.
- Load the label roll.
- Connect over Bluetooth inside the app.
- Choose a template. Edit it, then print.
What you get
- The P21
- A starter label roll, as the listing title says
The limits of thermal labels
- Thermal labels fade in sun and heat
- Keep them indoors, away from sunny windows and hot cars.
- No keyboard
- Every label needs the phone.
- Label rolls are model-specific
- Buy rolls listed for the P21.
Rolls worth stocking
Buy the P21 with an extra pack of white and clear rolls.
When it fits, when it doesn't
Good fit if you want the cheapest way to make app-designed labels for jars and drawers, or school supplies.
Poor fit if labels go outdoors or in a hot garage. Laminated TZe tape lasts longer.
Nelko P21 Bluetooth Label Maker or NIIMBOT D110 Mini Label Maker?
The NIIMBOT D110 is equally cheap and tiny, recognises the roll you load and has a built-in rechargeable battery. Choose on app preference and the label styles you like.
Side by side with rivals
| Machine | Prints on | Widest label | Design with | Power | Cost per label |
|---|---|---|---|---|---|
| Nelko P21 Bluetooth Label Maker | Thermal label rolls | Small labels | Phone app | Built-in battery | Roughly 3¢ to 6¢ |
| NIIMBOT D110 Mini Label Maker | Thermal label rolls | Small labels | Phone app | Built-in rechargeable | Roughly 3¢ to 6¢ |
| DYMO LetraTag 100H | DYMO LetraTag (paper or plastic) | 12 mm | ABC keyboard | Batteries | About 8¢ to 17¢ |
| Brother P-touch PT-D220 | Brother TZe, laminated | 12 mm | Built-in keyboard | 6 AAA or adapter | About 14¢ to 21¢ |
If not this one
- NIIMBOT D110 Mini Label Maker: You want a rechargeable mini printer with lots of patterned rolls. NIIMBOT D110 Mini Label Maker review. Check price
- DYMO LetraTag 100H: You want physical buttons and no app. DYMO LetraTag 100H review. Check price
- Brother P-touch PT-D220: Labels must last outdoors or in the wet. Brother P-touch PT-D220 review. Check price
Common questions
Does the Nelko P21 need ink?
No, it prints by heating thermal labels.
Do thermal labels fade?
Yes, in strong sun or heat. Indoors they last well.
Does it work with iPhone and Android?
Yes, through the Nelko app.
Should you buy the Nelko P21?
If you want the cheapest labels and like designing on your phone, order the Nelko P21.