Specs summary


The Sony Ericsson J300a's screen is Unknown with 128 x 128 pixels resolution.


The phone runs on the Other operating system (OS).


This model has no built-in camera. Sorry, no selfies.

12 MB

Internal memory is 12 MB. No external card slot is available for expansion.


The phone is powered by a Lithium Polymer (Li-Pol) battery. Sony's performance ratings are 12.5 days standby time, 420 minutes (2G).

Reviews (8/10 Avg. rating)

Darn, there are no reviews yet for this phone.

Okay but not great

I've had this phone for a year and about 10 months. It has never broken down, never froze and the buttons have always worked. PROS: - battery time is good, lasts a while - screen is big (proportionate to the size of the phone) and bright - ringer is loud and you can download MP3s for the ringtune... More
I've had this phone for a year and about 10 months. It has never broken down, never froze and the buttons have always worked. PROS: - battery time is good, lasts a while - screen is big (proportionate to the size of the phone) and bright - ringer is loud and you can download MP3s for the ringtune - alarm will work even if the phone is off - loud and clear CONS: - small keys: I have small hands, so I have no problem with the keys. BUT if you have average to large hands, this is definately not the phone for you - no camera: I bought this phone because it was advertised as a camera phone. It's not - the back: it has an odd shape on the back of the phone, I suppose it's for style. It's annoying and would be much more useful if it was just flat Overall, this phone is cute and will last for a while. I paid $200 for it (Pay as you go - no plan) but it's definately not worth that much. If you're using it to talk and maybe download some ringtunes, get it with a plan and it'll be worth it. Otherwise, there are a lot better phones worth $200 Less

HI Heather Do you still have the phone??? I have found this to be the best phone out there. BTW I have large hands and have no difficulty navigating on it. The ODD shape on the back is the external antenna Heather, and I personally fing it very stylish and manyh have made the same comment. If you don't want it any more ///...I do... LEt me know.. BTW did you know it is the only phone that lets you record phone conversations...in and out? None of the fancy and stupidly-expensive phones offer this feature. Cheers JP

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Full Specs

Release date October 1, 2005
Regions available
850/1900 MHz
SIM Card Yes
Dual SIM No
Operating System Other
Processor No
Internal Flash Memory
12 MB
Digital compass Unknown
FlightMode Unknown
Hearing Aid Compatible Unknown
TTY/TDD Unknown
Noise Cancellation Unknown
SAR Head: 1.12 W/kg
Languages English, French, Spanish
Manufacturer Warranty 1 Year
Accessories Included AC Charger, Manual, Standard Battery
Power & Battery
Type Lithium Polymer (Li-Pol)
Removable Battery Yes
Wireless Charging Unknown
Fast Charging No
Video Playback Time Unknown
Wi-Fi Surfing Time Unknown
3G Surfing Time Unknown
4G Surfing Time Unknown
Talk Time Up to:
420 minutes (2G)
Standby Time Up to: 12.5 days
Physical Characteristics
Design Type Bar
Multi-Use Smart Phone / PDA No
Material Unknown
Colors Pink
Dimensions [H x W x D] 9.9 x 4.3 x 1.8 cm
(3.9 x 1.7 x 0.7 in)
Weight 78 grams
(2.8 ounces)
Water Resistant / Waterproof Unknown
Rugged Design Unknown
IP Rating No
Antenna Type Internal
Changeable Faceplates Yes
Display / Screen
Type Color
Technology LCD
Colors 65k
Resolution 128 x 128 pixels
Pixel Density Unknown
Size Unknown
3D No
Secondary Display No
Graphics Screensavers, Wallpapers
Themes Yes
Backlit Illumination Yes
Zoom / Magnification Unknown
Screen Orientation Lock Unknown
Multi Touch Unknown
Fingerprint-Resistant Coating Unknown
Additional Display Features No
Input / Navigation
Sleep / Wake Key Unknown
Home Key Unknown
Mute Key Unknown
Input Type Standard / 12-key Numeric
Navigation Type D-pad
Predictive Text Entry T9
Physical Keyboard Unknown
Voicemail Key No
Any Key Answer Yes
Voice Commands No
Keypad / Screen Lock Yes
External Volume Control No
External Media Playback Controls Unknown
Fingerprint Sensor No
Call Management
Wi-Fi Calling Unknown
Voice over LTE (VoLTE) Unknown
Contact List Capacity 500 entries
Multiple Numbers Per Contact Unknown
Contact Groups Unknown
Auto Answer Yes
Voice Activated Dialing Yes
Photo Caller ID Yes
Web / Email / Messaging
Web Browsing Type Yes
Browser Unknown
Javascript Unknown
Flash Unknown
Email Yes
Email Protocols POP3, IMAP, SMTP
Additional Email Features No
Messaging Services SMS, EMS, MMS, IM
Push-to-talk (PTT) No
USB OTG Support No
Infrared No
Bluetooth No
Bluetooth Profiles
WiFi No
WiFi Encryption Unknown
Mobile Hotspot No
Expansion Slots No
Expansion Slots Info No
PC Synchronization Yes
TV-out Unknown
DLNA Support Unknown
NFC Unknown
UMA Support Unknown
Data Tethering Compatibility Yes
Java Applications Yes
Brew Applications No
ECML / Digital Wallet Unknown
PictBridge Unknown
Main Camera  
Aperture Unknown
Dual Lens No
Zoom No
Flash No
Additional Rear Camera Info No
Video Recording Formats No
Video Recording Parameters
Front Camera  
Zoom No
Additional Front Camera Info No
Video Recording Parameters
Audio / Video
Audio Playback No
Audio Formats No
Radio No
Video Playback Yes
Video Playback Formats 3GP / 3GPP, MPEG-4
Mobile TV Unknown
Streaming Video Yes
External Speakers Unknown
Headset Jack 2.5mm
Custom Ringtones No
Vibration Alert Yes
Downloadable Ringtones Yes
Ringtone Composer Yes
Ringer ID Yes
Haptic Feedback Vibration Unknown
Speakerphone Yes
To-Do / Task List Yes
Calendar Yes
World Clock Unknown
Alarm Yes
Stopwatch Yes
Timer Unknown
Calculator Yes
Currency Converter Yes
Document Viewer Unknown
Weather Unknown
Stocks Unknown
Maps Unknown
Notepad Unknown
Voice Memos / Recorder Unknown
Games Yes
Apps -
Included Software / Apps No
Additional Comments -
Related Links Sony Ericsson J300a Manual (PDF)
Sony Ericsson J300a Reviews
Where to buy Sony Ericsson J300a
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