Here is a specs comparison on the Canon EOS 700D / T5i and Canon EOS 650D / T4i. See the detail below:
| Feature | 650D / T5i | 700D / T4i |
|---|---|---|
| Sensor Resolution | 18.0 Million | 18.0 Million |
| Sensor Type | CMOS | CMOS |
| Sensor Size | 22.3 x 14.9 mm | 22.3 x 14.9 mm |
| Sensor Type | APS-C | APS-C |
| Image Size | 5184 x 3456 | 5184 x 3456 |
| Image Processor | Digic 5 | Digic 5 |
| Viewfinder Type | Pentaprism | Pentaprism |
| Viewfinder Coverage | 95% | 95% |
| Viewfinder Magnification | 0.85x | 0.85x |
| Storage Media | SD/SDHC/SDXC | SD/SDHC/SDXC |
| Continuous Shooting Speed | 5 FPS | 5 FPS |
| Max Shutter Speed | 1/4000 to 30 sec | 1/4000 to 30 sec |
| Shutter Durability | 150,000 | 150,000 |
| Native ISO Sensitivity | ISO 100-12,800 | ISO 100-12,800 |
| Boosted ISO Sensitivity | ISO 25,600 | ISO 25,600 |
| Autofocus System | 9 points | 9 points |
| Video Output | H.264, Motion JPEG | H.264, Motion JPEG |
| Video Maximum Resolution | 1920 x 1080 (30, 25, 24 fps) | 1920 x 1080 (30, 25, 24 fps) |
| LCD Size | 3″ Fully articulated TFT-LCD | 3″ Fully articulated TFT-LCD |
| LCD Resolution | 1,040,000 dots | 1,040,000 dots |
| Exposure Compensation | ±5 (at 1/3 EV, 1/2 EV steps) | ±5 (at 1/3 EV, 1/2 EV steps) |
| Bracketing | ±2 (3 frames at 1/3 EV, 1/2 EV steps) | ±2 (3 frames at 1/3 EV, 1/2 EV steps) |
| Battery | LP-E8 | LP-E8 |
| Battery Life | 440 shots (CIPA) | 440 shots (CIPA) |
| USB Version | 2.0 | 2.0 |
| Dimensions | 133 x 100 x 79 mm | 133 x 100 x 79 mm |
| Weight | 575g | 580g |
| MSRP Price | $648 | $749 |
From the specs comparison above, we can find there is no difference only T5i is a little heavy than T4i.