Ericsson KF 688

Overview

Released Dec 1998

Announced —

Price tier —

Also Known As —

Processor —

CPU Speed —

RAM —

Storage No

Price (USD) —

Regions USA, Canada

Regional Variants —

Warranty 1 Year

Accessories AC Charger, Manual, Standard Battery

Software & Support

OS Custom

OS at Launch —

Current Version —

OS Updates —

Security Updates —

Custom UI —

Display

Type Monochrome

Technology LCD

Size —

Resolution —

Pixel Density —

Colors —

Refresh Rate —

Touch Sampling Rate —

Peak Brightness —

Always On Display

DC Dimming

DisplayMate Grade —

Multi-touch

Fingerprint Resistant

Sensors —

Additional Features -

Secondary Display

Secondary Display Unknown

Type —

Size —

Resolution —

Color Type —

Colors —

Camera — Main

Main Camera —

Flash -

Sensor Name —

Sensor Size —

Focal Length (Main) —

Focal Length (Ultrawide) —

Focal Length (Telephoto) —

Optical Zoom —

Digital Zoom —

Video Resolution —

Video FPS —

Video Length —

Video Formats —

Features —

Additional Info —

Camera — Front

Front Camera Unknown

Video Recording Unknown

Resolution —

Video Resolution —

Video FPS —

Zoom Unknown

Optical Zoom —

Digital Zoom —

Features —

Additional Info -

Camera — Scores

DxOMark Overall —

DxOMark Photo —

DxOMark Video —

DxOMark Zoom —

DxOMark Bokeh —

DxOMark Selfie —

DxOMark Rank —

Performance

Chip —

Process Node —

GPU —

RAM —

Storage No

AnTuTu v11 —

Geekbench 6 Single —

Geekbench 6 Multi —

Geekbench 5 Single —

Geekbench 5 Multi —

Battery

Capacity —

Type Nickel-metal hydride (NiMH)

Removable Unknown

Fast Charging —

Wireless Charging —

Comes with Charger —

Talk Time —

Video Playback —

Internet (WiFi) —

Internet (Cellular) —

Standby —

Mixed Usage —

Charge Time 0–100% —

Charged in 30 Min —

GSMArena Score —

Battery Test Source —

Battery Life (Call) —

Battery Life (Video) —

Battery Life (Web) —

Battery Life (Gaming) —

Connectivity

Wi-Fi —

WiFi Version —

Bluetooth Unknown

Bluetooth Profiles —

Bluetooth Codecs —

USB Type -

USB OTG Unknown

USB Speed —

NFC Unknown

Infrared

Headset Jack Other / proprietary

Mobile Hotspot

GPS Unknown

GPS Type —

UWB

Satellite —

Memory Expansion Unknown

Expansion Type —

Expansion Capacity —

Cellular

Networks No

Data —

VoLTE Unknown

WiFi Calling Unknown

Physical SIM No

Dual SIM Unknown

eSIM

Push to Talk Unknown

Data Tethering Unknown

Design & Build

Form Factor Flip

Material —

Frame Material —

Rear Material —

Colors Black

Dimensions 13.0 × 4.8 × 1.9

Weight 229g

IP Rating —

Water Resistance Unknown

Fingerprint Sensor Unknown

Rugged Design

iFixit Score —

Parts Availability —

Audio

External Speakers —

Noise Cancellation Unknown

Dolby Atmos

Hi-Res Audio

FM Radio —

GSMArena Loudness —

Speaker Loudness —

Input & Navigation

Touchscreen

Navigation Type D-pad

Keyboard Type Standard / 12-key Numeric

Home Key Unknown

Sleep/Wake Key Unknown

External Volume Unknown

Safety

SAR Head —

SAR Body —

Hearing Aid Compatible Unknown

TTY/TDD Unknown

More

Additional Information

Messaging: SMS
Graphics: –
Backlit Illumination: Yes
Predictive Text Entry: –
Voicemail Key: Yes
Any Key Answer: Yes
Keypad/Screen Lock: Yes
Contact List Capacity: 50
PC Synchronization: Yes
Custom Ringtones: No
Radio: –
Games: No
Apps: –
Included Software / Apps: –

Additional Comments Product now discontinued

Related Links —

Manual Download PDF

Quick Start Guide —