It uses the S60 user interface and the Symbian 8.1a operating system.
At the time of its launch, the N70 had the most built-in memory alongside its system memory and was the penultimate (before the related N72) Symbian OS 8.x device released by Nokia, since the introduction of their new OS9 platform released in 2003 which offers more flexibility than the original that was made in 1998 and upgraded from then on.

In 2006 Nokia released N70 Music Edition phone.
Nokia N70 Technical Specifications
General
Status Available
Announced April 2005
Network (2G) GSM 900 / GSM 1800 / GSM 1900
Network (3G) UMTS 2100
Form factor Block
Antenna type Internal
SAR Value 0.950 W/Kg
Size
Weight 126 g (with battery)
Dimensions 108 x 53 x 21 mm
Display
Type Graphical
Coloured Yes, TFT, 256K colors
Size 176 x 208 pixels
- Five-way scroll key
- Downloadable themes
Memory
Shared memory 22 MB
- RS-DV-MMC, 64 MB card included, hotswap
Ringtones
Polyphonic ringtones Yes, 64
Ringtone profiles No
- Monophonic, MP3, True Tones
Networking
GPRS Yes, Class 10 (4+1/3+2 slots), 32 - 48 kbps
EDGE Yes, Class 10, 236.8 kbps
3G Yes, 384 kbps
USB Yes, Pop-Port
Bluetooth Yes, 2.0
WAP Yes
Browser Yes, WAP 2.0/xHTML, HTML
Infrared No
- Symbian OS 8.1a , Series 60 UI
- Instant Messaging
- Push to talk

Features
Vibration Yes
SMS Send / Receive
MMS Send / Receive
Camera Builtin, 2 MP, 1600x1200 pixels, video, flash; secondary video call VGA camera
Java Yes, MIDP 2.0
Games Yes, (changeable)
Clock Yes
Alarm Yes
Calculator Yes
Calendar Yes
To-do list Yes
Voice dialing Yes
Voice memo Yes
T9 Yes
Multiple numbers / contact Yes
Handsfree Yes
Headset jack Yes
- Video calling and download
- MP3/AAC/MPEG4 player
- PIM including calendar, to-do list and printing
Standard Battery
Type Li-Ion
Amperage 970 mAh
Standby time GSM: 265h
Talk time GSM: 3h 30m
In 2006 Nokia released its Music Edition series for N70, N73 and N91. All had black housing and new sales boxes and packages, and were special for their extra storage capacity as compared to the standard models. Music Edition of the N70-1 model featured a 1 GB memory card, 3.5 mm audio adapter with remote contol (AD-41), headphones (HS-28), dedicated music button (press once to activate music player or press and hold music button to activate radio mode) in place of the multimeda key button