The Em-10 have a 16 megapixels Four Thirds Sensor, no optical low pass filter and 3-axis based Image stabilization sysytem and X-T1 have APS-c based sensor and comes with a broad ISO range of 100-51200 (more than the E-M10), no optical low pass filter and retro splash-proof and dust-proof design.
Olympus E- M10 vs. Fujifilm X-T1 Specification Comparison Table.
Megapixel: Olympus E- M10 feature more resolution compared to Fujifilm X-T1, hence you get life size images, excellent for large print- out + you also get more details in your images compared to Fujifilm X-T1.
Bigger Sensor Size: Fujifilm X-T1 have bit bigger sensor size compared to Olympus E- M10, the bigger sensor area gives you more dynamic range in your images, more color depth and better low light performance aka less amount of noise visible during HIGH ISO mode.
Image Stabilization: 3-axis image-stabilization mechanism reduce the effects of camera motion and image blur, the new IS system is effective on five different kinds of movement: horizontal shift, vertical shift, rotary motion, as well as the yaw and pitch.
AF system: The Olympus E-M10 comes with FAST (Frequency Acceleration Sensor Technology) AF system, the 16megapixel live MOS sensor drives image data off the sensor at a super fast rate of 240 frames-per-second, the result we see is a flat 2x speed increase in Continuous Autofocus, On the other hand Fujifilm X-T1 have Phase + Contrast (Hybrid) based AF system that have blazing FAST AF speed.
Better low light performance – The Fujifilm X-T1 have more ISO range compared to Olympus E-M10, The more the ISO range you have the less noise you will see in your images.
Better Shutter Range: Olympus E- M10 features better shutter range compared to Fujifilm X-T1.
Display: Olympus E- M10 features bigger and high resolution display compared to Fujifilm X-T1. Olympus E- M10 features tilting+ touch Screen display on the other hand Fujifilm X-T1 have vari-angle display without touch screen, so we get more flexibility while composing our shot with Olympus E- M10.
Battery Life (CIPA): Fujifilm X-T1 features longer battery life (According to CIPA) compared to Olympus E- M10.
E – M10 is Rugged Camera – The E-M10 and The Fujifilm X-T1 also features dustproof and splash proof / weather sealed body.
Dimensions: Olympus E- M10 is smaller than Fujifilm X-T1.
Weight: Olympus E- M10 lighter than Fujifilm X-T1.
Image comparison Between Olympus E- M10 vs. Fujifilm X-T1
Verdict: The X-T1 will give you better image quality since it feature bigger sensor and more ISO range compared to E-M10, on the other hand the E-M10 will give you 3 axis based IS and touch display.
Buy Olympus E- M10 from Amazon
Buy Fujifilm X-T1 from Amazon