Philips SA4020 2GB* Flash audio player vs Philips GoGear SA4121

Comparison of SA4020, SA4121/37

53 specifications	A Philips SA4020 2GB* Flash audio player Model SA4020 View product	B Philips GoGear SA4121 Model SA4121/37 View product
Performanceidentical
Type	MP3 player	MP3 player
Firmware upgradeableKnown for one	—Unknown — not stated by the source	Yes
Design1 differ
Product colourDiffers	Black	Blue, White
Volume controlKnown for one	Digital	—Unknown — not stated by the source
Storageidentical
Player media type	Flash memory	Flash memory
Total storage capacity	2 GB	2 GB
Card reader integrated	No	No
Music memory capacity (songs)Known for one	920	—Unknown — not stated by the source
Displayidentical
Touchscreen	No	No
Display	LCD	LCD
Display resolution	32 x 128 pixels	32 x 128 pixels
Backlight	Yes	Yes
Display number of lines	2 lines	2 lines
File formatsidentical
Audio formats supported	MP3, WAV, WMA	MP3, WAV, WMA
Headphonesidentical
Headphone connectivity	3.5 mm	3.5 mm
Audioidentical
Built-in speaker(s)Known for one	—Unknown — not stated by the source	Yes
RMS rated powerKnown for one	—Unknown — not stated by the source	2 W
Signal-to-Noise Ratio (SNR)	85 dB	85 dB
MP3 bit rates	8 - 320 Kbit/s	8 - 320 Kbit/s
WMA bit rates	5 - 192 Kbit/s	5 - 192 Kbit/s
Channel separation	45 dB	45 dB
MP3 sample rates	8 - 48 kHz	8 - 48 kHz
WMA sample rates	8 - 48 kHz	8 - 48 kHz
EqualizerKnown for one	Yes	—Unknown — not stated by the source
Equalizer modesKnown for one	Classic, Jazz, Pop, Rock	—Unknown — not stated by the source
Record modesidentical
Voice recording	Yes	Yes
Built-in microphone	Yes	Yes
Ports & interfacesidentical
Interface	USB 2.0	USB 2.0
Networkidentical
Wi-FiKnown for one	—Unknown — not stated by the source	No
BluetoothKnown for one	—Unknown — not stated by the source	No
Cameraidentical
Built-in camera	No	No
Second camera	No	No
Poweridentical
RechargeableKnown for one	—Unknown — not stated by the source	Yes
Continuous audio playback timeKnown for one	—Unknown — not stated by the source	10 h
Cylindrical battery size	AAA	AAA
Batteryidentical
Battery technology	Alkaline	Alkaline
System requirementsidentical
Minimum RAMKnown for one	—Unknown — not stated by the source	2048 MB
Windows operating systems supported	Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64	Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Internet connection required	Yes	Yes
Optical drive required	Yes	Yes
USB required	Yes	Yes
Weight & dimensionsidentical
Depth	23 mm	23 mm
Height	77.8 mm	77.8 mm
Width	31.5 mm	31.5 mm
Packaging dataidentical
Package widthKnown for one	—Unknown — not stated by the source	135 mm
Package depthKnown for one	—Unknown — not stated by the source	38 mm
Package heightKnown for one	—Unknown — not stated by the source	195 mm
Package type	Clamshell	Clamshell
Packaging contentidentical
Batteries included	Yes	Yes
Headphones includedKnown for one	—Unknown — not stated by the source	Yes
User guideKnown for one	Yes	—Unknown — not stated by the source
Radioidentical
FM radioKnown for one	Yes	—Unknown — not stated by the source
Supported radio bandsKnown for one	FM	—Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.