Thanks to the great suggestions I received in this thread…
…I now own the Tunenge S15 and Fenix E03R v2.0 keychain flashlights. Here’s a quick comparison and my initial thoughts.
For my preferences and what I’m used to carrying, I prefer the form factor of the Fenix. But the Tunenge is still very much appropriate for keychain duty, being about the same length as the Nitecore Tip, which I’ve been EDCing for years. The Tunenge manual says its dimensions are 60x16.5mm.
Both have very good build quality, and no annoyances or damaging elements for constant pocket carrying. Most importantly, no magnets!
Of the two UIs I definitely prefer the more straightforward operation of the Tunenge. It doesn’t have or require a specific lock-out mode; it’s simply hold to activate turbo mode while pressed, or a double-click to activate the 4 constant modes, and a click to cycle through them. Then a long press to turn off. This seems effective for preventing sustained accidental pocket activation while also giving useful momentary turbo access. The Fenix’s UI is considerably more fiddly and complex, in fact it’s easier to just show the manual:
Both appear to have approximately the same brightness in all 4 modes, and maximum brightness is extremely impressive for their diminutive size. The Tunenge is somewhat more throwy and concentrated, and the Fenix is obviously quite floody with its dual emitters/reflectors. The tint of both lights is better than expected but not perfect, the Tunenge has a slightly more greenish tinge especially in the lower modes, and both tend toward a neutral tint although I would prefer slightly more warmth.
Overall they both offer an incredible amount of light in a small package at an affordable price, the Fenix goes for around $30, whereas the Tunenge is a truly exceptional deal especially if you can find it on sale for around $15.
Non-affiliate links just for convenience:
- Tunenge S15: https://www.amazon.com/dp/B0BXY3FLD8
- Fenix E03R v2.0: https://www.amazon.com/dp/B0BZTC68JP
