Blackberry Bold 4 9900 has better RAM than Blackberry 9720. Neither of them has front Flash. In terms of display resolution, Blackberry Bold 4 9900 has better resolution of 480 x 640 than Blackberry 9720 which has resolution of 360 x 480.
| Name | Blackberry Bold 4 9900 | Blackberry 9720 |
| RAM | 768 MB | 512 MB |
|---|---|---|
| Display | 2.8 in | 2.8 in |
| Battery | 1230 mAh | 1450 mAh |
| Camera | 5 MP | 5 MP |
| Price | Rs. 5499 | Rs. 4199 |
The launch Date of the first phone is May, 2011. The cost of Blackberry Bold 4 9900 is Rs. 5499. The launch Date of the second phone is August, 2013. The cost of Blackberry 9720 is Rs. 4199.
Blackberry Bold 4 9900 has TFT Screen type where as Blackberry 9720 has IPS Screen type. Blackberry Bold 4 9900 has display density of 286 PPI & Blackberry 9720 has only 214 PPI display density. Both mobiles have same aspect ratio of 4:3.
Blackberry Bold 4 9900's larger 768 MB RAM is better for playing games and all with respect to Blackberry 9720's lower 512 MB RAM.
Blackberry Bold 4 9900 has 5 MP Rear Camera in comparison to Blackberry 9720's 5 MP Rear Camera.
Both the phones has Blackberry OS Operating System but the first one runs on version 7 and the second one on 7.1 version.
| Name | Blackberry Bold 4 9900 | Blackberry 9720 |
| General | ||
| Sim Type | Single Sim, GSM | Single Sim, GSM |
| Dual Sim | No | No |
| Device Type | Smartphone | Smartphone |
| Release Date | May, 2011 | August, 2013 |
| Design | ||
| Dimensions | 66 x 115 x 10.5 mm | 66 x 114 x 12 mm |
| Weight | 130 g | 120 g |
| Design Type | Classic (Candybar) | |
| Qwerty | Yes | Yes |
| Display | ||
| Type | Color TFT Screen | Color IPS Screen (16M colors Colors) |
| Touch | Yes | Yes |
| Size | 2.8 inches, 640 x 480 pixels | 2.8 inches, 480 x 360 pixels |
| Aspect Ratio | 4:3 | 4:3 |
| PPI | ~ 286 PPI | ~ 214 PPI |
| Memory | ||
| Phonebook | Unlimited | |
| RAM | 768 MB | 512 MB |
| Storage | 8 GB | |
| Card Slot | Yes, upto 32 GB | Yes, upto 32 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes 14.4 Mbps Download 5.76 Mbps Upload | Yes 7.2 Mbps Download 5.76 Mbps Upload |
| 4G | No | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v2.1 | Yes, v2.1 |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| USB Features | USB Tethering, USB Charging, USB Storage | |
| Extra | ||
| GPS | Yes, with A-GPS Support | Yes, with A-GPS Support |
| Sensors | Accelerometer, Compass | Accelerometer |
| 3.5mm Headphone Jack | Yes | Yes |
| NFC | Yes | |
| Camera | ||
| Rear Camera | 5 MP | 5 MP |
| Auto Focus | Yes | |
| Features | Image stabilizer, Face detection, Geo tagging | Geo tagging |
| Video Recording | 720p | |
| Flash | Yes, LED | Yes, LED |
| Front Camera | No | No |
| Technical | ||
| OS | Blackberry OS v7 | Blackberry OS v7.1 |
| CPU | 1.2 GHz, Single Core Processor | 806 MHz, Single Core Processor |
| Java | Yes, MIDP v2.1 | No |
| Browser | Yes, supports HTML5 | Yes, supports HTML |
| Multimedia | ||
| Supports | MMS, Instant Messaging, Voice Recording, Calendar | MMS, Instant Messaging |
| Yes | Yes, with Push Email | |
| Music | MP3, AAC, AAC+, eAAC+, FLAC, WMA, AMR | MP3, eAAC+, WMA, WAV |
| Video | MPEG4, H.263, H.264, WMV | MP4, H.263, H.264, WMV |
| FM Radio | No | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Removable Battery | Removable Battery |
| Size | 1230 mAh, Li-ion Battery | 1450 mAh, Li-ion Battery |
| StandBy Time | 18 days | |
| Talk Time | 7 hours | |
| Music Playback Time | 30 hours | |