Phone Comparison - BlackBerry Curve 8520 vs BlackBerry Bold 9790 vs BlackBerry 9720

general General Info

Manufacturer BlackBerry BlackBerry BlackBerry
Announced July 2009 November 2011 August 2013
Status Available - August 2009 Available - December 2011 Available - August 2013
Colors Black Black Black, White, Purple, Blue, Pure Pink
Form Factor Candybar Candybar Candybar
Dimension 109 x 60 x 13.9 mm
(4.29 x 2.36 x 0.55 in )
110 x 60 x 11.4 mm
(4.33 x 2.36 x 0.45 in)
114 x 66 x 12 mm
(4.49 x 2.6 x 0.47 in)
Weight 106 g (3.74 oz) 107 g (3.77 oz) 120 g (4.23 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900 / 2100 / 800
HSDPA 900 / 1700 / 2100
HSDPA 850 / 900 / 1900 / 2100 HSDPA
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS BlackBerry OS BlackBerry OS 7.0 BlackBerry OS 7.1
Processor 512MHz Marvel Tavor MG1 1 GHz 806 MHz Tavor MG1
GPU -
RAM N/A 768 MB 512 MB
Internal Memory 256 MB 8 GB storage 512 MB ROM
External Memory microSD, up to 32GB microSD, up to 32GB microSD, up to 32 GB

display Display

Type TFT TFT capacitive touchscreen IPS capacitive touchscreen
Colors 65K colors 16M colors 16M colors
Size 2.46 inches 2.45 inches 2.8 inches
Resolution 320 x 240 pixels (163 ppi) 480 x 360 pixels (245 ppi) 480 x 360 pixels (214 ppi)
Screen-to-Body Ratio 28.52% 28.14% 32.35%
Multi-Touch no yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No No Stereo FM radio with RDS
Games Yes + downloadable Yes Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 2 MP, 1600x1200 pixels 5 MP, 2592x1944 pixels 5 MP, 2592x1944 pixels
Flash No LED flash LED flash
Features Auto focus, Geo-tagging, Face Detection, Image Stabilization Geo-tagging, Image Stabilization
Video Yes, QVGA Yes, VGA Yes
Front Camera No [Similar] No [Similar] No [Similar]

connectivity Connectivity and Data Rate

GPRS Class 10 (4+1/3+2 slots), 32 - 48 kbps Yes Yes
Edge Class 10, 236.8 kbps Yes Yes
3G No HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, v2.0 with A2DP Yes, v2.1 with A2DP, EDR Yes, v2.1 with A2DP
Wi-Fi Wi-Fi 802.11b/g Wi-Fi 802.11 a/b/g/n, UMA (carrier-dependent) Wi-Fi 802.11 b/g, Wi-Fi hotspot
USB Yes, microUSB Yes, microUSB v2.0 Yes, microUSB v2.0
GPS No Yes, with A-GPS support Yes, with A-GPS support
Browser HTML HTML HTML

memory User Memory

Internal 256 MB 8 GB storage, 768 MB RAM 512 MB ROM, 512 MB RAM
Expandable Storage microSD, up to 32GB microSD, up to 32GB microSD, up to 32 GB

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor not present proximity sensor not present proximity sensor present
Accelerometer Sensor accelerometer sensor not present accelerometer sensor not present accelerometer sensor not present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Standard battery, Li-Ion Standard battery, Li-Ion Li-Ion Battery
Capacity 1150 mAh (JM-1) 1450 mAh
Stand by Up to 408 h Up to 432 h (2G)
Up to 408 h (3G)
Up to 432 h
Talk Time Up to 4 h 30 min Up to 5 h 10 min (2G)
Up to 5 h 20 min (3G)
Up to 7 h