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Samsung Knack review

9.7/10 AVG.

Informr score
The Samsung Knack currently has an Informr score of 9.7 out of 10. This score is based on our evaluation of 1 sources including reviews from users and the web's most trusted critics.

The Samsung Knack, also known as the U310, is a quality entry level phone designed for making calls and texting. While you won’t find fancy features here, not even a camera or Bluetooth, Samsung hits the mark when it comes to producing a device for that large demographic that “just wants a good phone!”

The external monochrome display is clear and shows the time, signal and battery strength, and inside is a 176 x 220 pixel resolution screen, an alphanumeric keypad with large, comfortable keys and even a dedicated 911 key.

On the right edge of the phone are color-coded rubber covers for the 2.5mm headphone jack and charger and a toggle button to handle volume and voice commands.

The Samsung Knack also comes with an alarm, calendar, calculator, speakerphone and stopwatch. Simple features that can be useful.

This phone offers 4.5 hours of talk time and 336 hours of standby time.

This phone is a great choice for non-tech savvy folks who just want a reliable phone with good call quality and a simple menu structure.

Operating system
Screen Size

Prices (Where to Buy)

Common Questions

Samsung released the Knack on September 3, 2008.

We've got you covered! Download a free PDF copy of the Samsung Knack user manual here.

Samsung backs up the Knack with a 1 Year parts & labour warranty.

If your Knack has problems and is still within its warranty period, you could contact Samsung support or the retailer you purchased the phone from. You'll find Samsung's contact information here. If your phone is off warranty and needs repair for a physical problem such as a broken screen or bad battery, you should visit an authorized service centre or a local phone repair shop. You can also connect with others in The Informr Community Forum to find and share answers to questions.

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Screen Size

The Samsung Knack's screen size is 2.2 inches with x pixels resolution.


There is a processor (CPU).


The phone runs on proprietary operating system firmware.


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

32 MB

Internal memory is 32 MB. No external card slot is available for expansion.


The phone is powered by a Lithium-Ion (Li-Ion), 1000 mAh battery. Samsung's performance ratings are 15.5 days standby time.

Samsung Knack Specs

Release date September 3, 2008
Regions available USA
Mobile / Cellular Data
850/1900 MHz
SIM card size
Dual SIM No
Operating System No
Internal Storage 32 MB
Hearing Aid Compatible Yes
Noise Cancellation No
SAR Head: 1.14 W/kg
Body: 1.03 W/kg
Languages No
Manufacturer Warranty 1 Year
Accessories Included AC Charger, Manual, Standard Battery
Power & battery
Battery Type Lithium-Ion (Li-Ion)
Battery Capacity 1000 mAh
Removable Battery Yes
Wireless Charging No
Fast Charging No
Video Playback Time Unknown
Internet Use (Wi-Fi) Unknown
Internet Use (Celluar) Unknown
Talk Time Unknown
Standby Time Up to: 15.5 days
Physical Characteristics
Design type Flip
Colors Black, silver
Dimensions [H x W x D] 9.6 x 5.1 x 1.9 cm (3.8 x 2 x 0.7 in)
Weight 103 grams
Water Resistant / Waterproof Unknown
Rugged design No
IP Rating No
Display / Screen
Type Color
Technology LCD (TFT)
Colors 65k
Resolution x pixels
Pixel density Unknown
Size 2.2 inches
Secondary Display Monochrome LCD, 96 x 96 pixels, 1 inches
Graphics Yes
Themes Yes
Backlit Illumination Yes
Zoom / Magnification No
Screen Orientation Lock No
Multi-Touch No
Fingerprint-Resistant Coating No
Additional Display Features -
Input / Navigation
Sleep / Wake Key No
Home Key No
Mute Key No
Input Type Standard / 12-key Numeric
Navigation Type D-pad
Predictive Text Entry T9
Physical keyboard No
Voicemail Key No
Any Key Answer Yes
Voice Commands No
Keypad/Screen Lock No
External Volume Control Yes
External Media Playback Controls No
Fingerprint Sensor No
Call Management
Wi-Fi Calling No
Voice over LTE (VoLTE) No
Contact List Capacity 500
Multiple Numbers Per Contact 4 numbers
Contact Groups No
Auto Answer Yes
Voice Activated Dialing Yes
Photo Caller ID Yes
Web / Email / Messaging
Web Browser No
Email Client No
Email Protocols No
Additional Email Features -
Messaging SMS, EMS, MMS
Push-to-talk (PTT) No
USB OTG Support No
Infrared No
Bluetooth No
WiFi No
WiFi Encryption -
Mobile Hotspot No
Memory Expansion Slot No
Expansion Slot Info
PC Synchronization No
TV Out No
DLNA Support No
Data Tethering Compatibility No
Java Applications No
Brew Applications No
ECML / Digital Wallet No
Main Camera
Additional Rear Camera Info
Video Recording Parameters
Front Camera
Additional Front Camera Info
Video Recording Parameters
Audio / Video
Audio Playback No
Audio Formats No
Radio No
Video Playback No
Video Playback Formats No
Streaming Video No
External Speakers No
Headset Jack 2.5mm
Custom Ringtones No
Vibration Alert Yes
Downloadable Ringtones Yes
Ringer ID Yes
Haptic Feedback Vibration No
Speakerphone Yes
To-Do / Task List No
Calendar Yes
World Clock Yes
Alarm Yes
Stop Watch No
Timer No
Calculator Yes
Currency Converter No
Viewable document types No
Weather No
Stocks No
Maps No
NotePad Yes
Voice Memos / Recorder No
Games No
Included Software / Apps -
Additional comments Other Names (AKA): Samsung SCH-U310

Related Links Manual (PDF)
Samsung Knack Reviews
Where to buy Samsung Knack
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User Reviews

Knack is a snap

My Mom who is 80 got the Knack because she could read the fact and the numbers were large enought for her to see. She had a cell phone before this one and never used it, but she LOVES her Knack and calls me every day, she is confident to use it and even the instruction book is written in large print, T...More
My Mom who is 80 got the Knack because she could read the fact and the numbers were large enought for her to see. She had a cell phone before this one and never used it, but she LOVES her Knack and calls me every day, she is confident to use it and even the instruction book is written in large print, Thanks for making a nice looking phone for our older population. My Mom thinks she is cool now, and I can keep in touch with her. She loves this phone. Less