Comparison of Siemens S4 'Power' and Siemens A50 smartphones based on their characteristics

Siemens S4 'Power'

Siemens A50

Manufacturer and Model

Manufacturer

Siemens

Siemens

Phone model

S4 'Power'

A50

Year of release

1998

2002

Appearance

Case type

Monoblock

Monoblock

Body length

150 mm

109 mm

Body width

45 mm

46 mm

Body thickness

28 mm

23 mm

Weight

235 g

95 g

Volume

189 cm³

115.32 cm³

Body materials and finishes

• Plastic

• Plastic

Replaceable panels

Colors

• Black

• Silver

Battery

Battery capacity

1000

650

Battery type

Li-Ion

NiMH

Removable battery

Battery charging time

5 h

1.5 h

Call duration in GSM networks

10 h

5 h

Standby time in GSM networks

96 h

250 h

Screen

Screen resolution

101 x 64 pixels

Screen technology

STN

Color depth

1 bit

1 bit

Aspect ratio

1.578

SIM card and calls

Number of SIM-cards

1

1

Polyphonic ringtones

Vibration mode

Conference call

Speed dial

Autodial

Sound indication of talk time

Extended phone book

Contacts in the phone book

70

50

Data exchange between SIM card and internal memory

Mobile communications

Cellular generation

2G

2G

GSM support

GSM frequencies

• GSM 900 MHz
• GSM 1800 MHz

• GSM 900 MHz
• GSM 1800 MHz

Internet data transmission standards

Data transmission standards

• GPRS
• HSCSD
• CSD

Control elements

Standard keypad

Russified input

Documents and office

Installed Organizer (PIM)

Connectivity and synchronization

PC connection

Software features

Installed browser

• WAP

Installed games

Installed games

• StackAttack
• Balloon Shooter

Receiving and sending SMS

SMS messages

SMS T9 support

EMS support

SAR level

SAR level

0.97 W/kg