Vastly higher resolution
1280x720 px vs 800x480 px—2.40x higher resolution
A lot more battery power
2100 mAh vs 1500 mAh—40% more battery power
A lot higher pixel density
306 ppi vs 233 ppi—31.33% higher pixel density
Explicitly faster CPU clock speed
4 x 1.4 GHz
2 x 1 GHz
4 x 1.4 GHz vs 2 x 1 GHz—2.80x faster CPU clock speed
Bigger screen size
4.8 " vs 4 "—20% bigger screen size. The bigger the screen size is, the better the user experience.
Significantly more megapixels (photo)
8 MP vs 5 MP—1.60x more megapixels (photo)
Has a CMOS sensor
CMOS image sensors are slowly replacing CCD sensors, due to reduced power consumption and better image quality. They can be very compact and cost relatively little to produce.
Noticeably more megapixel (photo, front camera)
1.9 MP vs 0.3 MP—6.33x more megapixel (photo, front camera)
8.6 mm vs 9.9 mm—1.30 mm thinner
Vastly better video recording quality
1080 x 30 fps
720 x 30 fps
1080 x 30 fps vs 720 x 30 fps—1.50x better video recording quality
Has continuous autofocus when recording movies
When recording movies they stay focussed and sharp.
Has manual ISO
This allows to manually set the ISO level.
Has manual white balance
With manual white balance you can choose the most accurate setting and avoid the green, blue or red hue which can occur in auto mode. You can also change the setting for artistic effect.
Has a video light
A video light helps when recording a movie in low-light situation like a party.