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Compare 4 products

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HTC Touch Diamond 2 Mobile Phone
HTC Touch Diamond 2
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Nokia Lumia 520 Mobile Phone
Nokia Lumia 520
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Nokia Lumia 521 Mobile Phone
Nokia Lumia 521
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Nokia Lumia 635 Mobile Phone
Nokia Lumia 635
Available colors
Editiorial reviews
5
4.2 out of 5
3 user ratings
5 stars
33 %
4 stars
66 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
19
3.4 out of 5
7 user ratings
5 stars
14 %
4 stars
71 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
8
8 editorial reviews
Check out our review of the Nokia Lumia 521; one of the most popular Windows Phone 8 smartphones of the year.Read more
Popular Hardware and Tech site AnandTech has reviewed the Nokia Lumia 521, available exclusively on T-Mobile in the US .Their view reinforces just how good a deal the handset is, and how effective the Windows Phone OS can be on low-end handsets.Read more
The Nokia Lumia 521 for T-Mobile is a good smartphone for a great price, as long as you don't mind Windows Phone's lack of apps.Read more
Read editorial reviews
10
3.2 out of 5
6 user ratings
5 stars
0 %
4 stars
66 %
3 stars
16 %
2 stars
16 %
1 stars
0 %
Read editorial reviews
User rating
5
4.0 out of 5
5 user ratings
5 stars
40 %
4 stars
20 %
3 stars
40 %
2 stars
0 %
1 stars
0 %
38
4.2 out of 5
38 user ratings
5 stars
39 %
4 stars
39 %
3 stars
18 %
2 stars
2 %
1 stars
0 %
39
3.9 out of 5
39 user ratings
5 stars
15 %
4 stars
58 %
3 stars
23 %
2 stars
2 %
1 stars
0 %
36
4.1 out of 5
36 user ratings
5 stars
36 %
4 stars
38 %
3 stars
25 %
2 stars
0 %
1 stars
0 %

Hardware

Operating systemWindows Mobile 6.1Windows Phone 8.1Windows Phone 8Windows Phone 8.1
CPU clock speed0.53 GHz1.0 GHz1.4 GHz1.2 GHz
CPU coresSingle-coreDual-coreDual-coreQuad-core
RAM memory288 MB512 MB512 MB512 MB
CPU model
N/A
Qualcomm Snapdragon S4 MSM8227Qualcomm Snapdragon S4 MSM8227Qualcomm Snapdragon 400 MSM8926
GPU model
N/A
Qualcomm Adreno 305Qualcomm Adreno 305Qualcomm Adreno 305

Display

Screen size3.2 in4.0 in4.0 in4.5 in
Touchscreenyesyes
N/A
yes
Number of colors65K16.7M16.7M16.7M
Panel typeLCDLCDLCDLCD
Resolution480 x 800 px800 x 480 px800 x 480 px480 x 854 px
Dual screen supportnono
N/A
no
Scratch resistant displaynoyes
N/A
yes
HDRnono
N/A
no
Technology
N/A
IPS TFTIPS LCDIPS TFT
Pixel density
N/A
233.0 ppi235.0 ppi221.0 ppi
Multi touch
N/A
yesyes
N/A

Rear camera

Primary sensor resolution5.0 Mpx5.0 Mpx5.0 Mpx5.0 Mpx
Video recordingyesyes
N/A
yes
Maximum FPS at the highest resolution15.0 fps30.0 fps
N/A
30.0 fps
Autofocusyesyesyesyes
Geo-taggingyesyesyesyes
Primary sensor size
N/A
1/4"
N/A
1/4"
Primary lens aperture
N/A
2.4 f2.4 f
N/A
Highest video resolution
N/A
1280 x 720 px1280 x 720 px1280 x 720 px
Maximum FPS (regardless of res.)
N/A
30.0 fps
N/A
30.0 fps
Optical zoom
N/A
4x4x
N/A
LED Flash
N/A
yes
N/A
N/A
Touch focus
N/A
yesyesyes
Panorama
N/A
N/A
yes
N/A

Storage

Internal storage512 MB8 GB
N/A
8 GB
Memory card readeryesyesyesyes
Maximum card storage16GB64GB64GB128GB
Types of memory card supported
  • microSD
  • microSDHC
microSDmicroSD
  • microSD
  • microSDHC
  • microSDXC

Design

Colour of product
  • Black
  • Silver
  • Black
  • Blue
  • White
  • Yellow
White
  • Black
  • Blue
  • Green
  • Orange
  • White
  • Yellow
Water resistantnono
N/A
no
Shock resistantnono
N/A
no
Material
N/A
  • Glass
  • Plastic
N/A
Plastic

Dimensions

Height4.25 in4.72 in4.88 in5.1 in
Width2.09 in2.52 in2.52 in2.63 in
Depth0.54 in0.39 in0.39 in0.36 in
Weight4.14 oz4.37 oz4.37 oz4.73 oz

Sensors

Accelerometeryesyesyesyes
Proximity
N/A
yesyes
N/A
Digital compass
N/A
yes
N/A
N/A
Ambient light sensor
N/A
yesyes
N/A
Gyroscope
N/A
yes
N/A
N/A

Connectivity

Dual sim supportnononono
Sim card sizeMini-SIMMicro-SIMMicro-SIMMicro-SIM
Bluetoothyesyesyesyes
Bluetooth version2.04.03.0 HS4.0
Bluetooth profileA2DP
  • A2DP
  • A2DP
  • AVRCP
N/A
  • A2DP
  • A2DP
  • AVRCP
NFCnono
N/A
no
Charging connectionUSBUSB
N/A
USB
USB version2.02.0
N/A
2.0
Video outputNoNo
N/A
No
DLNA certified
N/A
no
N/A
yes
Headphone connection
N/A
3.5 mm3.5 mm3.5 mm
USB On-The-Go (OTG)
N/A
no
N/A
no
Type of USB connector
N/A
N/A
Micro-USB
N/A
Bluetooth codec
N/A
N/A
N/A
  • aptX
  • SBC

Cellular

Wireless network (Wi-Fi)yesyesyesyes
Wireless networking standard
  • 802.11b
  • 802.11g
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
N/A
  • 802.11b
  • 802.11g
  • 802.11n
Navigation systemA-GPSGLONASSGPSGLONASS
2G GSMyesyesyesyes
3G UMTSyesyes
N/A
yes
4G LTEnonoyesyes
Data transmission
N/A
HSPA+HSPA+HSPA+
GSM frequencies
N/A
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
  • 850 MHz
  • 900 MHz
  • 1800 MHz
  • 1900 MHz
N/A
UMTS frequences
N/A
2100 MHz
  • 850 MHz
  • 1700 MHz
  • 1900 MHz
  • 2100 MHz
N/A
Mobile hotspot
N/A
yes
N/A
N/A

Battery

Replaceable batteryyesyes
N/A
yes
Battery capacity1100.0 mAh1430.0 mAh1430.0 mAh1830.0 mAh
Standby time500.0 h360.0 h400.0 h648.0 h
Talk time5.0 h14.0 h9.0 h14.0 h
Fast chargingnono
N/A
no
Wireless charging nono
N/A
no
Battery type
N/A
Lithium ionLithium ion
N/A

Often compared with Nokia Lumia 520

Nokia Lumia 520 Mobile Phone
Nokia Lumia 521
NokiaLumia 520
NokiaLumia 521

Often compared with Nokia Lumia 521

Nokia Lumia 521 Mobile Phone
Nokia Lumia 520
NokiaLumia 521
NokiaLumia 520

Often compared with Nokia Lumia 635

Nokia Lumia 635 Mobile Phone
Nokia Lumia 630
NokiaLumia 635
NokiaLumia 630