Samsung is always leading the trend of networking development. As the partner model of Samsung GT-B3740, the 4G LTE Surfstick Samsung GT-B3730 is not as popular as GT-B3740. Samsung GT-B3730 4G Modem is the company’s first USB-based internet stick from TeliaSonera that offers 4G networks connectivity as well as a backup plan.
Samsung GT-B3740 could support maximum download speed up to 100Mbps download speed and 50mbps upload speed. Samsung GT-B3730 could also do that, the difference between them is Samsung GT-B3740 could work only on 4G LTE FDD 800MHz while Samsung GT-B3730 could only work on 4G LTE FDD 2600MHz. So Samsung GT-B3740 could only work specific areas in Europe, because not all the countries in Europe deployed the band 800MHz. And GT-B3730 is also the same; it has to work conditionally on only LTE FDD 2600MHz.
Samsung GT-B3730 seems more powerful in application because it could not only work with 4G network, it could also work on 3G UMTS 2100MHz and 2G GSM/GPRS/EDGE networks. So if there is unlocked Samsung GT-B3730, users could use in every countries in Europe. Under 3G network, Samsung GT-B3730 could support maximum download speed up to 17Mbps and upload speed up to 5.76Mbps.
Samsung GT-B3740 and GT-B3730 both have dual external antenna connector, with external antenna, users could get more stable network connection and better signal strength, but we didn’t get any official information for the connector type.
Samsung GT-B3740 is in compact USB design but GT-B3730 is in rotatable USB design. GT-B3740 is used for Vodafone 4G LTE networks in Germany, but GT-B3730 is for Sweden operator TeliaSonera. TeliaSonera has nationwide 4G licenses in Norway, Sweden, Finland and Denmark. So if you don’t have specific requirement, Samsung GT-3730 is good for personal use.