Mini USB vs Micro USB
Two superseded USB connectors. Mini is the earlier, thicker one; micro is thinner and rated for roughly twice the insertion cycles.
Both are old connectors and neither is used on anything new. Mini USB came first and is the chunkier, more trapezoid one, common on cameras and MP3 players of the 2000s. Micro USB replaced it around 2007: thinner, so it fits slimmer phones, and rated for twice as many plug-ins before it wears out. They are not interchangeable — the plugs are different shapes. If you are matching a cable to an old device, compare the shape rather than the name.
- Verdict:
- Both obsolete — micro is the later and thinner of the two
Side by side
| Specification | Mini USB | Micro USB |
|---|---|---|
| Introduced | 2000 | 2007 |
| Thickness | About 3 mm | About 1.8 mm |
| Rated insertions | About 5,000 | About 10,000 |
| Speed | 480 Mbps | 480 Mbps |
| Interchangeable | No | No |
| Typically found on | Cameras, MP3 players, GPS units | Phones, power banks, e-readers |
Telling them apart
Mini is squarer and noticeably thicker with sloped corners. Micro is a flatter, wider sliver with the same trapezoid outline. Side by side it is obvious; from memory it is not, which is why cables get bought twice.
Why micro replaced mini
Phones were getting thinner and mini was too tall to fit. Micro also doubled the rated insertion cycles, which mattered once a connector was being used daily rather than to offload holiday photos.
Both are USB 2.0
Neither carries anything faster than 480 Mbps in the forms you will encounter. If speed matters, the device is too old for the cable to be the bottleneck worth fixing.
Check before you swap. Batteries with similar dimensions are not always interchangeable. Always verify voltage, chemistry and the requirements printed in your device manual before fitting a replacement.