Screen size
equal specsmy721z2.2"
P9521 Porsche2.2"
Quick verdict
P9521 Porsche leads the measured specs 4-2.
Measured wins
my721z
2
spec wins
Ties
5
equal specs
P9521 Porsche
4
spec wins
Overall winner
Screen size
equal specsTechnology
my721z
GSM
P9521 Porsche
GSM
2G bands
my721z
GSM 900 / 1800 / 1900
P9521 Porsche
GSM 850 / 900 / 1800 / 1900
GPRS
my721z
Yes
P9521 Porsche
Class 10
EDGE
my721z
No
P9521 Porsche
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Class 10
Announced
my721z
2008, February. Released 2008
P9521 Porsche
2008, October. Released 2008, December
Status
my721z
Discontinued
P9521 Porsche
Discontinued
Dimensions
my721z
106 x 52 x 12 mm (4.17 x 2.05 x 0.47 in)
P9521 Porsche
91.5 x 48.3 x 17.8 mm (3.60 x 1.90 x 0.70 in)
Weight
my721z
125 g (4.41 oz)
P9521 Porsche
139 g (4.90 oz)
SIM
my721z
Mini-SIM
P9521 Porsche
Mini-SIM
Type
my721z
TFT, 256K colors
P9521 Porsche
AMOLED, 256K colors
Size
my721z
2.2 inches, 15.2 cm2 (~27.6% screen-to-body ratio)
P9521 Porsche
2.2 inches, 15.0 cm2 (~33.9% screen-to-body ratio)
Resolution
my721z
176 x 220 pixels (~128 ppi density)
P9521 Porsche
240 x 320 pixels, 4:3 ratio (~182 ppi density)
Other
my721z
Mirror effect
P9521 Porsche
Secondary external display
Card slot
my721z
microSD (dedicated slot)
P9521 Porsche
microSD (dedicated slot)
Phonebook
my721z
Yes
P9521 Porsche
1000 contacts
Call records
my721z
20 dialed, 20 received, 20 missed calls
P9521 Porsche
Yes
Internal
my721z
-
P9521 Porsche
22MB
Single
my721z
3.15 MP
P9521 Porsche
3.15 MP, AF
Video
my721z
Yes
P9521 Porsche
Yes
Features
my721z
-
P9521 Porsche
LED flash
Other
my721z
No
P9521 Porsche
No
Loudspeaker
my721z
Yes
P9521 Porsche
Yes
Alert types
my721z
Vibration; Polyphonic ringtones
P9521 Porsche
-
3.5mm jack
my721z
No
P9521 Porsche
No
WLAN
my721z
No
P9521 Porsche
No
Bluetooth
my721z
Yes
P9521 Porsche
1.2, A2DP
Positioning
my721z
No
P9521 Porsche
No
Radio
my721z
Stereo FM radio, RDS
P9521 Porsche
No
USB
my721z
Proprietary
P9521 Porsche
1.1
Sensors
my721z
P9521 Porsche
Fingerprint (front-mounted)
Messaging
my721z
SMS, MMS, Instant Messaging
P9521 Porsche
SMS, MMS, Email
Browser
my721z
WAP 2.0/xHTML
P9521 Porsche
WAP 2.0/xHTML
Games
my721z
Yes
P9521 Porsche
Yes
Java
my721z
Yes, MIDP 2.0
P9521 Porsche
Yes, MIDP 2.0
Other
my721z
Music player Predictive text input Organizer
P9521 Porsche
MP3/eAAC+ player MP4/H.263 player Organizer Voice memo/dial Predictive text input
Type
my721z
Removable Li-Ion battery
P9521 Porsche
Removable Li-Ion battery
Stand-by
my721z
Up to 200 h
P9521 Porsche
Up to 240 h
Talk time
my721z
Up to 3 h
P9521 Porsche
Up to 3 h 30 min
Music play
my721z
-
P9521 Porsche
Up to 7 h
Colors
my721z
Silver
P9521 Porsche
Black
Price
my721z
-
P9521 Porsche
About 1200 EUR