Cameras with longer battery life can take more photos before exhausting their batteries.
Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable
Maximum effective ISO is an estimate of the highest sensitivity at which a camera can capture excellent quality photos.
Cameras with higher effective ISO will be better choices for indoor photography, night shooting, and indoor sports photography, especially if you intend to make large prints.
You can learn more at our glossary entry.
Maximum effective ISO test data courtesy of DxO Mark.EOS M3 test data on DxO Mark T6s test data on DxO Mark
Highest resolution Canon APS-C camera yet; Good high ISO performance for its class; Very fast autofocus; Servo AF in Live View; Quick Control Dial & top-plate LCD screen.
Shallow buffer depth with RAW files; Below average battery life; No 60p video frame rate.
DSLR image quality & resolution in a mirrorless body; Higher-res 24MP APS-C sensor; Much improved AF performance; Better ergonomics with full PASM dial; Built-in Wi-Fi & NFC; Tilting LCD.
No built-in EVF; Limited native lens selection; Slow burst mode; Shallow buffer depth with RAW files; No 60p video frame rate or 4K video option.