Some browsers include an identifier in the Useragent string which tells us the model of the device that is being used. Below is a list of 78 unique device identifiers collected by WhichBrowser.
acer_S200 | Acer | neoTouch S200 | 
DX900/2.0 Profile | Acer | Tempo DX900 | 
acer_F900 | Acer | Tempo F900 | 
Bird T900 | Bird | T900 | 
CoolPadF800/CMCC | Coolpad | F800 | 
T5388 | Dopod | Touch Diamond 2 | 
garmin-asus-Nuvifone-M10/1.0 | Garmin-Asus | Nuvifone M10 | 
garmin-asus-Nuvifone-M10/2.0 | Garmin-Asus | Nuvifone M10 | 
garmin-asus-Nuvifone-M10/2.0) | Garmin-Asus | Nuvifone M10 | 
HP_iPAQ_510 | HP | iPAQ 510 | 
iPAQ610 | HP | iPAQ 610 | 
HD_mini_T5555 | HTC | HD mini | 
HTC_HD_mini | HTC | HD mini | 
HTC_HD_mini_T5555 | HTC | HD mini | 
compatible; MSIE 6.0; Windows NT 5.1; T-Mobile_LEO; HTC_HD2_T8585; Windows Phone 6.5.3.5 | HTC | HD2 | 
HD2_T8585 | HTC | HD2 | 
HTC_HD2 | HTC | HD2 | 
HTC_HD2_Opera | HTC | HD2 | 
HTC_HD2_T8585 | HTC | HD2 | 
HTC_HD2_T8585-Orange | HTC | HD2 | 
HTC_HD2_T9193 | HTC | HD2 | 
HTC_Touch_HD2_T8585 | HTC | HD2 | 
T-Mobile_LEO | HTC | HD2 | 
dopodT5588_TD | HTC | Hengshan | 
HTC_love | HTC | P3350 | 
HTC_Snap_S521 | HTC | Snap | 
P3450 | HTC | Touch | 
HTC_Mega-T3333-Orange | HTC | Touch 2 | 
HTC_Touch2_T3320 | HTC | Touch 2 | 
HTC_Touch2_T3333 | HTC | Touch 2 | 
HTC_Touch2_T3335 | HTC | Touch 2 | 
HTC_Touch3G_T3333 | HTC | Touch 2 | 
P3650 | HTC | Touch Cruise | 
HTC P3700 | HTC | Touch Diamond | 
HTC_P3700 | HTC | Touch Diamond | 
HTC_Touch_Diamond2_T5353 | HTC | Touch Diamond 2 | 
HTC_Touch_Diamond2_T5360 | HTC | Touch Diamond 2 | 
XV6975 | HTC | Touch Diamond 2 | 
HTC_Touch_HD_T8282 | HTC | Touch HD | 
HTC_Touch_HD_T8288 | HTC | Touch HD | 
HTC_Touch_Pro2 | HTC | Touch Pro 2 | 
HTC_Touch_Pro2_T7373 | HTC | Touch Pro 2 | 
HTC_Touch_Pro2_T7379 | HTC | Touch Pro 2 | 
T7380 | HTC | Touch Pro 2 | 
HTC_TyTN_II | HTC | TyTN II | 
P4550 | HTC | TyTN II | 
VS750 | LG | Fathom VS750 | 
GW825 | LG | IQ GW825 | 
ES405B | Motorola | ES405 Enterprise Smartphone | 
Motorola_ES405B | Motorola | ES405 Enterprise Smartphone | 
MC659B | Motorola | MC65 Wireless Rugged Mobile Computer | 
Motorola_MC659B | Motorola | MC65 Wireless Rugged Mobile Computer | 
Lumia 820 | Nokia | Lumia 820 | 
SAMSUNG-GT-B6520 | Samsung | B6520 OmniaPRO 5 | 
SAMSUNG-GT-B7300 | Samsung | B7300 OmniaLITE | 
SAMSUNG-GT-B7300Orange/BVIL1 | Samsung | B7300 OmniaLITE | 
SAMSUNG-GT-B7320 | Samsung | B7320 OmniaPRO | 
SAMSUNG-GT-B7350 | Samsung | B7350 OmniaPRO 4 | 
GT-B7610 | Samsung | B7610 OmniaPRO | 
SAMSUNG-GT-B7610 | Samsung | B7610 OmniaPRO | 
SAMSUNG-SGH-I637/UCIG1 | Samsung | i637 Jack | 
SAMSUNG-SGH-I637/UCIJ2 | Samsung | i637 Jack | 
GT-i8000 | Samsung | I8000 Omnia II | 
GT-i8000T | Samsung | I8000 Omnia II | 
SAMSUNG-GT-i8000 | Samsung | I8000 Omnia II | 
SAMSUNG-GT-i8000/NXXIL3 | Samsung | I8000 Omnia II | 
SAMSUNG-GT-i8000H | Samsung | I8000 Omnia II | 
SAMSUNG-GT-i8000Orange/BVIJ1 | Samsung | I8000 Omnia II | 
SAMSUNG-GT-I8000U | Samsung | I8000 Omnia II | 
SAMSUNG-GT-i8000V/BUII1 | Samsung | I8000 Omnia II | 
SAMSUNG-SGH-i900 | Samsung | i900 Omnia | 
SGH-i900 | Samsung | i900 Omnia | 
SAMSUNG SCH-i920 | Samsung | i920 Omnia II | 
SAMSUNG-SCH-M715 | Samsung | M715 T*OMNIA II | 
WS007SH | Sharp | W-ZERO3 | 
SonyEricssonM1i/R1BA | Sony Ericsson | M1i Aspen | 
SonyEricssonX2/R3AA | Sony Ericsson | Xperia X2 | 
XV6175.1 | UTStarcom | XV6175 |