Those who are want to know what are Nokia S40 Phones, then this is the right thread for you.

S40 1st Edition
(128 x 128)
2355, 6651, 3125, 6610i, 6560, 6012, 6015, 6015i, 3205, 3108, 3120, 2650, 7200, 6810, 6820, 3105, 6225, 3200, 3100, 6108, 7250i, 6585, 3300, 6220, 6100, 7210, 6610,7250, 5100, 6800

(96 x 65)
3587, 3587i, 3586, 3586i, 3595, 3585i, 8910i, 3530, 3510i

(128 x 160)
7600

S40 2nd Edition
(128 x 128)
2626, 2610, 5140, 5140i, 6020, 6030, 6230, 3220, 6235, 6235i, 6822, 7260

(128 x 160)
6060, 6080, 6070, 5070, 6103, 6102i, 6155, 6155i, 6152, 6255, 2855, 3152, 3155, 3155i, 7270, 7360, 6102, 6101, 6170

(208 x 208)
8800, 8801, 6230i

S40 3rd Edition: Feature Pack 1

(128 x 160)
6151, 6136, 6125

(240 x 320)
6136, 6126, 6131, 6233, 6234, 8600 Luna

(208 x 208)
8800 Sirocco Edition

S40 3rd Edition: Feature Pack 2

(128 x 160)
3500c, 3109c, 3110c, 6086, 5200, 6085

(240 x 320)
6300, 5300, 7390, 7373

S40 5th Edition: Feature Pack 1

(128 x 160)
2680 Slide, 3555

(240 x 320)
5220 XM, 6600-Slide, 6600-fold, 3600-Slide, 6212c, 6300i, 3120c, 8800 Arte, 6301, 5610-XpressMusic, 5310-XpressMusic, 7210 Supernova, 7310 Supernova, 7610 Supernova, 7900-Prism, 6500c, 6500 Slide

S40 6th Edition

(240 x 320)
7510 Supernova
Mozilla/4.08 (SmartPhone; Symbian OS-Series60/1.03) NetFront/3.3