Slightly faster CPU clock speed
4 x 1.5 GHz
4 x 1.4 GHz
4 x 1.5 GHz vs 4 x 1.4 GHz—7.14% faster CPU clock speed
A little higher pixel density
312 ppi vs 306 ppi—1.96% higher pixel density
Much more RAM memory
2 GB vs 1 GB—1 GB more RAM memory
Clearly more megapixel (photo, front camera)
5 MP vs 1.9 MP—2.63x more megapixel (photo, front camera)
Has stereo speakers
Devices with stereo speakers deliver sound that surrounds the user from left and right side, creating a richer sound and a better experience.
Every pixel has three subpixels
The device has three full subpixels per pixel which results in a sharp and crisp picture. Pixels in some displays (like AMOLED) share one subpixel to preserve space. It may result in less crisp or little blurred image.
Vastly wider aperture
2 vs 2.6 —30% wider aperture. Aperture sizes are expressed in f-stops. The smaller the number, the wider the aperture. This means the sensor captures more light, helping to avoid blur by enabling you to use a faster shutter speed. In addition, a wide aperture provides a narrow depth of field enabling you to focus on the subject and blur the background.
Supports two SIM cards
A dual SIM mobile phone can work with two SIM cards at the same time.
Has AF tracking
With AF tracking, once you choose the subject and press the shutter release part way down, as the subject moves, the autofocus will follow it. No more out of focus shots.
A lot thinner
6.18 mm vs 8.6 mm—2.42 mm thinner
Has a radio
It works as an FM radio with included headsets
Appreciably less body volume
53.72 cm³ vs 82.94 cm³—1.54x less body volume
65.5 mm vs 70.6 mm—5.10 mm narrower
120 g vs 133 g—13 g lighter
132.7 mm vs 136.6 mm—3.90 mm shorter