Logitech S315i full review
Logitech’s S315i is a streamlined and attractive portable speaker system. The smoothly curved unit is about the size of a paperback book and a mere 1.5in thick. It’s light and compact enough to slip easily into a backpack when you’re travelling.
You can run the S315i off the mains, but it also has a built-in rechargeable battery that saves you having to keep buying batteries. The battery lasts for about 10 hours normally, and there’s a power-saving mode that can almost double that to 20 hours.
The docking unit is compatible with both the iPhone and all docking iPods and supports all iPod models without dock adaptors.
A speaker this size obviously won’t be powerful enough to replace a larger hi-fi in your front room, but the volume is more than adequate for listening to music at work or in your bedroom.
Higher frequencies are clear and strong, although a little distortion does creep in when you turn the volume all the way up. The bass is also stronger than we’d expected from such a small set of speakers. However, the power-saving mode works by reducing the bass dramatically, so you do have to sacrifice a bit of sound quality to extend the battery life.