The magnetic 2-pin cable that fits watches with 2.84mm between their charging contacts, including VeryFit IDW models, the ID208 family and ID205L-style watches. It comes as singles or 2-packs, mostly 3.3 feet long.
A missing charger is the fastest way to break a step streak, and the fix starts with a ruler. Look at the back of the watch: two small gold contacts sit side by side. Measure from the centre of one to the centre of the other, and if the gap is 2.84mm, about 0.11 inch, this cable fits.
Get the measurement right in three steps:
Close is not good enough with magnetic chargers. A 4mm cable on a 2.84mm watch will often snap on, because the magnets still grab, yet nothing charges. The pins simply land beside the contacts.
The 2.84mm pitch is among the pitches you meet most often on budget fitness watches, next to 4mm, 2.5mm and 7.62mm. The FitPro charger guide covers all four and shows which watches use each. Once you know the number, write it on a piece of tape around the cable so a household with several watches never mixes them up.
Count the contacts too. This is a 2-pin cable, so a watch with four gold dots on the back needs a different charger even if two of them happen to sit 2.84mm apart.
| Spec | Value |
|---|---|
| Connector | 2-pin magnetic |
| Pin pitch | 2.84mm (0.11 in), centre to centre |
| Cable length | 3.3 ft / 1 m on most versions |
| Plug | USB-A; some packs include a USB-C cable |
| Pack sizes | Single cable or 2-pack |
| Power source | Any USB port, power bank or adapter |
| Recommended adapter | 5V 1A |
| Charge time | About 2-2.5 hours for an ID205L-class watch |
| Protection | Over-voltage and over-current; short-circuit on some versions |
| Contacts | Copper probes, gold-plated on some versions |
| Materials | ABS and PVC with copper wire |
| Bend rating | 5,000+ bends on some versions |
| Fits VeryFit models | IDW13, IDW15, IDW16, IDW17, IDW19, IDW20, IDW21, IDW23, IDW25, IDW26, IDW28, ID208 (BT/Plus), GTX20 |
| Fits other models | ID205L, ID205S, ID205U, ID205G, ID206, ID216, SW021, SW023, SW025, Uwatch 3S, Urun |
| Brands named | Letsfit, Willful, YAMAY, Letscom, Umidigi, Fitpolo, TOZO, SKG, Wyze |
| Does not fit | Da Fit watches, 4-pin chargers, Apple Watch, Galaxy Watch, Fitbit |
| Colour | Black; one version adds a white reverse-polarity cable |
Model numbers are the second check after the ruler. The 2.84mm cable is built around two big watch families: VeryFit-app watches with IDW, ID208 and GTX codes, and the older ID205L-style watches sold under many brand names. If your watch's model code is on this list, the pitch almost always matches.
| Family | Model codes named for 2.84mm |
|---|---|
| VeryFit IDW series | IDW13, IDW15, IDW16, IDW17, IDW19, IDW20, IDW21, IDW23, IDW25, IDW26, IDW28 |
| VeryFit ID208 family | ID208, ID208 BT, ID208 Plus, GTX20 |
| ID205L style | ID205L, ID205S, ID205U, ID205G, ID206, ID216, SW021, SW023, SW025 |
| Umidigi | Uwatch 3S, Uwatch 3, Urun, Urun S, Ufit |
Brands whose watches appear across these packs include Letsfit, Willful, YAMAY, Letscom, Lintelek, Fitpolo, TOZO, SKG and Wyze. Brand alone is not proof, though. One brand can sell a 2.84mm watch one year and a 4mm watch the next, so trust the model code and the ruler over the logo.
Watches in the same line-up that fall into these families include:
Several makers list what this cable will not charge: Da Fit watches, anything with four charging contacts, Apple Watch in every series, Samsung Galaxy Watch and Fitbit. The model decoder helps if the code on the back of your watch is hard to read.
No model code at all? Open the watch's app and look in the device or about screen, where the model usually appears next to the firmware version. The pairing name shown in the phone's Bluetooth list often carries the code too. Between the code, the app and the ruler, you will know for sure before ordering.
Owning two cables changes how you charge. Keep one at the bedside and one in the gym bag or at work, and the watch gets topped up wherever you already are. A 2.84mm cable fully charges an ID205L-class watch in about 2 to 2.5 hours.
A charging routine that keeps the streak alive:
Polarity trips up a few watches. Most 2.84mm cables work straight away, but one version ships a black and a white cable wired with opposite polarity, and only one of the two will charge a given watch. If the watch stays dark, try the other cable before assuming a fault.
If none of that works, the won't-turn-on fixes walk through the remaining checks.
Every version here shares the same 2.84mm magnetic head, so you are only choosing how many cables you need and which plug your adapters use. Most are 3.3 feet, about 1 metre, long enough to run from a socket to a nightstand. Protection against over-voltage and over-current is standard across the range.
How the versions differ:
A few versions add durability extras such as gold-plated contacts or a 5,000-plus bend rating. Those help if the cable lives coiled in a gym bag. For a cable that stays on a desk, any version does the job.
| Your setup | Good pick |
|---|---|
| Home plus gym bag | Any 2-pack |
| USB-C laptop or charger | A pack with a USB-C cable |
| VeryFit IDW or ID208 watch | A VeryFit-labelled cable |
| Old ID205L that ignores new cables | The polarity pair |
Other pitches have their own cables: the 4mm universal cable suits Da Fit-style watches. Pair a spare charger with a spare strap from the bands guide and the gym bag is complete.
Measure from the centre of one charging contact to the centre of the other. If it reads 2.84mm, about 0.11 inch, this cable fits.
Yes for the IDW13 to IDW28 series, the ID208 family and GTX20, which are named by several makers of this cable.
Usually not. Most Da Fit watches use a 4mm pitch, and several makers of this cable list Da Fit watches as not compatible.
The pitch may be wrong, sweat may be coating the contacts, or the polarity may be reversed. Clean the contacts and try the other cable if you have a polarity pair.
Yes. Plug the USB end into any phone adapter, laptop or power bank; a 5V 1A adapter is the usual suggestion.
