A smartwatch chipset is the processor that runs the watch. The MT300 runs a JL7013A chip with Bluetooth LE 5.0, a 1.43-inch AMOLED display (466×466) and a 440mAh battery, while the HD300 Pro runs an ATS3085S platform with a separate AG3352B GPS chip. Ask for the chip name first — it sets what the watch can do.
Why the chip name matters more than the brand name
Two watches can share a case, a strap and a screen, and still behave like different products — because the board inside is different. One holds a call on a noisy street; the other drops it.
A spec sheet that only says "Bluetooth 5.0" or "GPS" tells you nothing about the hardware inside. A spec sheet that names the chip — JL7013A, ATS3085S, 8763EWE — gives you something you can check, compare and hold the supplier to. Our Smartwatch Sourcing Guide starts with the inside of the watch for the same reason.
What the chipset decides
Bluetooth version and calling. The chip and the board decide whether the watch makes calls, and which Bluetooth version ships. Here is the part buyers miss: the same chip can ship with different Bluetooth versions. The JL7013A in the MT300 ships with Bluetooth LE 5.0; in the F57 it ships with Bluetooth 5.3 calling; the 7013A in the ET580 ships with Bluetooth 5.2 BLE calling. The chip sets the ceiling — the build sets the number. Check the Bluetooth version printed for that exact model, and test call quality on the sample — our Bluetooth calling guide shows how.
GPS: a named chip or a line on the page. Some watches carry a dedicated GPS receiver chip; others handle location through the main chip. The HD300 Pro names its receiver — an AG3352B GPS chip on an ATS3085S platform — and that name is the whole point. A spec sheet that only says "GPS" gives you no way to judge the receiver inside. If your buyers run or cycle, ask for the GPS chip name; our GPS accuracy guide explains the 5% test.
Battery life and the screen. The chip, the display and the battery size work as a set — the HT38 pairs an AB5691 chip with an 1100mAh battery rated at 20 days, while the F57 pairs a JL7013A chip with a 200mAh battery rated at 6 days of heavy use. Rated days are claims until you test them: our battery guide shows how to read them, and our 7-day sample checklist shows how to test them.
App, languages and updates. The chip decides which companion app the watch runs and whether it supports over-the-air updates. The MT300 runs the H Band app with 11 watch languages and OTA upgrades; the KT77 runs FitCloudPro with 27 watch languages. If your market needs a language the app does not carry, the watch is the wrong watch. Our companion app guide lists the pairing failures buyers report most.
Five chipsets buyers keep meeting
| Chipset | Model | Display | Battery | What the spec sheet shows |
|---|---|---|---|---|
| JL7013A | MT300 | 1.43-inch AMOLED, 466×466 | 440mAh | Bluetooth LE 5.0; 128Mb flash; OTA upgrade; H Band app; IP67 |
| JL7013A | F57 | 1.91-inch IPS LCD, 286×340 | 200mAh, 6 days heavy use | Bluetooth 5.3 calling; rotating encoder; H Band app; IP67 |
| ATS3085S + AG3352B GPS | HD300 Pro | 1.43-inch AMOLED, 466×466 | 530mAh, 3–5 days use | Named GPS chip; 4GB memory; 15–20 days standby |
| 8763EWE (Realtek) | V69 | 1.85-inch HD display | 710mAh | Bluetooth 5.0 BLE calling; IP67 |
| BT8959T | KT77 | 1.46-inch IPS display | 300mAh, about 7 days use | Bluetooth 5.3 calling; IPX8 to 10 metres; FitCloudPro; 27 languages |
| AB5691 | HT38 | — | 1100mAh, 20 days rated | IP68; 2-pin magnetic charging |
Where a cell shows a dash, the spec sheet does not state that number — ask for it in writing. Where two models share a chip, read the rest of the row: the MT300 and the F57 both run the JL7013A, but one ships Bluetooth LE 5.0 with a 440mAh battery and the other Bluetooth 5.3 calling with a 200mAh battery.
How to ask your supplier about the chip
Put these five questions in writing, for the exact model:
- What is the exact chipset model — name and version? "Latest chip" is not an answer.
- Which Bluetooth version ships on this model, and is calling dual-mode? Get the version number, not the word "Bluetooth".
- Is GPS a named chip or a line on the spec sheet? If it is a chip, which one?
- How much flash memory is on board, and does the watch support OTA updates? The MT300 carries 128Mb flash; the HD300 Pro carries 4GB memory. The number decides how many dials the watch holds.
- Which app, which languages, and which phones does it pair with?
If a supplier cannot name the chip, the price is not the problem — the supplier is.
Featured model: the MT300
The MT300 smartwatch is a good way to read a chipset: a JL7013A chip with 128Mb flash, Bluetooth LE 5.0, a 1.43-inch AMOLED display (466×466), a 440mAh battery with 2-pin magnetic charging, and IP67 waterproofing — in a metal-alloy case with a rotating crown, at 63.5g. It runs the H Band app with 11 watch languages, supports OTA upgrades, and carries 50 sport modes. Every number there comes from the spec sheet — and each one is a question to ask about the next model you compare.
A chip name will not sell a watch by itself. But it is the fastest check in the whole order: one name tells you the Bluetooth version to expect, the GPS to ask about, and the app your buyers will live with. Start there, then test the sample like your customer will use it.
Frequently asked questions
Does the chipset decide battery life?
Partly — the chip, the display and the battery size work as a set. The HT38 pairs an AB5691 chip with an 1100mAh battery rated at 20 days; the F57 pairs a JL7013A chip with a 200mAh battery rated at 6 days of heavy use. Test the sample through two full days of real use first.
Is a newer Bluetooth version always better?
The version number is only part of the story: the same JL7013A chip ships with Bluetooth LE 5.0 in the MT300, Bluetooth 5.2 BLE calling in the ET580, and Bluetooth 5.3 calling in the F57. Test calling on the sample in a quiet room and on a noisy street.
Can I ask for a different chipset in the same watch?
No — the chip is baked into the board, so changing it means a different model. Pick the model whose chip already matches the features you need.
Talk to HnThai about your smartwatch order
HnThai is a sourcing partner based in Huaqiangbei, Shenzhen. We check the chipset, the Bluetooth version and the battery rating against the spec sheet before your order ships, and we put the numbers in writing in your quotation. See the full range on our smartwatches page or contact us with the features your buyers need.
