| BiteX Original (BR 60) | BiteX Max (BR 115) | BiteX Go (BR 75) | |
|---|---|---|---|
| POWER | 2× AAA batteries, up to ~300 uses per pair | Lithium-ion battery, recharged over USB-C | No battery at all. Plugs into your phone's USB-C port and draws power from it |
| HEAT | Single ceramic plate, ~50°C | Ceramic plate plus a switchable second heating ring for larger bites | Compact heating plate |
| PROGRAMMES | Two (3 or 6 seconds) | Two | Two |
| LIGHT | None | Built-in BiteSpotLight for finding bites in the dark, plus auto switch-off after two minutes | Built-in BiteSpotLight |
| CARRY | Pocketable pen | The comfort-first premium model | Ultra-compact, small enough for a keyring |
| MY TESTING | Three summers, my bite log | Not yet. Specs only | Not yet. Specs only |
Three pens, three ideas
BiteX Original (BR 60): the proven all-rounder
This is the pen this site exists because of, and the only one of the three I can vouch for from experience. My one-word review after three summers is “gamechanger,” and my bite log on the homepage backs it up. Two AAAs last most people a whole season, spares are available in any village shop on earth, and the two programmes cover sensitive and regular skin. Beurer itself positions it as the family all-rounder.
What you give up against the new models: no light for 3am bites, no rechargeable convenience, and a single fixed heating plate. In three summers of use, none of those gaps stopped it working.
BiteX Max (BR 115): the premium upgrade
The Max is what happens when the engineers get a second version: a lithium-ion battery charged over USB-C, a switchable second heating ring that widens the treated area for bigger bites, the BiteSpotLight for finding a bite in the dark, and an automatic switch-off after two minutes. If horsefly-sized welts or midnight treatment sessions are your reality, those are real features, not gimmicks.
The honest trade-offs: it's new enough that there's no long-term track record, it will sit at the top of the family's price range, and a rechargeable battery is only as good as your memory. Flat AAAs can be swapped in thirty seconds at a campsite; a flat lithium cell needs a cable and a wait.
BiteX Go (BR 75): the pen that isn't carrying a battery
The Go's idea is genuinely clever: remove the battery entirely. It plugs straight into your phone's USB-C port, draws its power from there, and is small enough to live on a keyring, which makes it the version you'll actually have with you when a bite happens. It still gets two programmes and the BiteSpotLight.
The constraints follow from the idea: your phone must be with you, charged, and have a free USB-C port, which rules out older Lightning-port iPhones. And treating a bite on your own arm while the pen is attached to your phone is a small geometry puzzle the pocket pens don't have.
For completeness: the family also includes the BiteX Day & Night (BR 90), a battery model with a switchable LED light, and the BiteX Travel (BR 10), an extra-compact single-programme pen with a carabiner hook. Both sit between the three above rather than beyond them.
My verdict
Buy the Original unless one of the new ideas solves a problem you actually have. It's the proven one, the cheapest route into heat treatment, and the pen behind every result on this site. Choose the Max if you treat bites constantly, get large welts, or hunt bites in the dark often enough for the light and the second ring to earn their premium. Choose the Go if the best pen is the one that's always on your keys and your phone has USB-C. I’m genuinely excited to get the Max and the Go on the test bench; until then, the Original is the only one with my name on the results.
How this page was made: the Original column reflects three summers of hands-on use. The Max and Go launched in May 2026, so their columns come from Beurer’s published specifications, and I say so rather than pretending otherwise. Across the whole family, Beurer states the devices are chemical-free medical devices suitable from age 3, during pregnancy and for diabetics, with a five-year guarantee. Availability of the new models is still patchy while retailers stock up. I’ll update this page when I’ve tested them. Nothing here is medical advice: severe or unusual reactions need a pharmacist or doctor, not a website.