Korg Chromatic Tuner. First, I feel it is important to note that, as practice aids for violin, most tuners do not respond accurately or quickly enough for students to feel comfortable using them. In fact, frustration with them seems to be the most common reaction when employed for checking pitch while practicing. However, as far as tuners on the lower end of the price range go, the Korg is, relatively speaking, a strong performer with a clear and readable interface (as compared with models by Intellii or Sabine, that are largely equivalent in other respects but more difficult to use). Of course, this Korg does not include a metronome, which is something of a disadvantage given that combining a tuner and metronome is often a very good value. Is an electronic tuner really that much of a step-up in usefulness compared to a pitch-fork? If the tuner is being used to work on passages incredibly slowly or to separately tune all four strings on the violin, then the answer is clearly yes. But for a beginner, (especially a young one) trying to learn how to play in tune the likely result is frustration.
Rating: 4 stars (deductions for absence of metronome and slow response typical of tuners in this price range.