KX-UDT131 KX-UDT121 KX-UDT111
LCD Display Type 65,000-Color TFT
LCD Size 1.8 inch
LCD Contrast 6 levels
LCD Backlight Yes
LED Ringer/Charge
Audio Features
  KX-UDT131 KX-UDT121 KX-UDT111
Handset, Speaker, Headset Volume 6 levels
Ringtones 27
Ringer Volume 6 levels + Off
Headset Port Yes (2.5 mm mini pin jack)
Headset Ringer Yes
Bluetooth® Yes (Built-in)
HD Voice (Wideband Voice) Yes
Noise Reduction / Advanced Voice Clarity Yes
SP PHONE Yes (Full Duplex)
  KX-UDT131 KX-UDT121 KX-UDT111
US-DECT 1.92GHz - 1.93GHz (for USA and Canada) Yes
EU-DECT 1.88GHz - 1.90GHz Yes
DECT encryption Yes
Phone Features
  KX-UDT131 KX-UDT121 KX-UDT111
Multiple registration support 4
SIP Accounts 2 per PS
Phone Book (Entries) 500
Call Log Entries 20 incoming calls + 20 outgoing calls
Redial Yes
Do Not Disturb Yes
Anonymous Call (CLIR) Yes
Anonymous Call Rejection Yes
Calling party name and number presentation (CLIP, CNIP) Yes
Call Rejection
(Registered number to call back)
Call Rejection
(Manual operation while incoming call)
DTMF dialing during call Yes
3-Party Conferencing Yes
Call Transfer Yes
Call Hold Yes
Call Forward Unconditional / User Busy /
No Answer
Call Waiting Yes
Message Waiting Indication Yes
Vibrate Ring Yes
Splash and Dust Resistant IP65* 1
Distinctive Ringing Yes
  KX-UDT131 KX-UDT121 KX-UDT111
Firmware update via air Yes
Phone Book transfer via Bluetooth® Yes (vCard) Yes (vCard)
Battery Life
  KX-UDT131 KX-UDT121 KX-UDT111
Talk Up to 13 hours Up to 13 hours Up to 11 hours
Standby Up to 200 hours Up to 200 hours Up to 200 hours
Battery charge time 3 hours 3 hours 7 hours
  KX-UDT131 KX-UDT121 KX-UDT111
Charger Standby: 0.3 W
Max: 4.0 W
Standby: 0.3 W
Max: 4.0 W
Standby: 0.3 W
Max: 2.0 W
Battery type Li-ion battery pack x 1 Li-ion battery pack x 1 Ni-MH AAA battery x 2
Belt Clip Yes (Clip type included) Yes (Swivel type is included)
Strap Hole Yes (1 hole) Yes (2 holes)
Wall mount (Charger) Yes
Operating Environment 0 ˚C - 40 ˚C (32 ˚F - 104 ˚F)
Dimensions [Handset]
(Width x Depth x Height)
55.0 mm x 23.0 mm x 151.5 mm 48.5 mm x 17.9 mm x 127.5 mm 48.2 mm x 25.4 mm x 146.3 mm
Dimensions [Handset on Charger]
(Width x Depth x Height)
71.5 mm x 80.5 mm x 165.0 mm 63.0 mm x 78.0 mm x 140.0 mm 71.9 mm x 71.3 mm x 159.7 mm
Weight>*2 [Handset] 141 g 88 g 115 g
Weight* [Handset + Charger] 191g 135 g 165 g
・The Bluetooth word mark is trademark or registered trademark owned by Bluetooth SIG, Inc. and any use of such mark by Panasonic Corporation is under license.
*1 IP65 compliant: Protection against water spray from any direction and protection against dust entering the handset.
*2 Including Battery