ISO performance lags behind the FUJIFILM, even though both have a large APS-C sized sensor. You can shoot up to ISO 1600 with confidence; at ISO 3200 there is minimal image noise but there’s noticeable detail loss. In contrast, the Olympus, while losing detail, soothes over the appearance of noise with more skill. Colors look a tad muted, and exposure a tad underexposed.
Colors are rendered a tad flat.
The A5000 can shoot up to ISO 1600 in low-light with minimal noise.