Huawei E398S-81 4G LTE FDD TDD USB Surfstick Review
Huawei E398S-81 4G LTE FDD TDD USB Surfstick ReviewKeywords: HUAWEI E398, HUAWEI E398s-81 Review, Huawei E392u-92, 4G LTE TDD FDD Modem,4G modem for Band 38 and band 40Comparing with Huawei E398 other branch models, such as Huawei E398u-1, E398u-18 andE398u-15, Huawei E398s-81 should be a special one, its not because Huawei E398s-81 hasdifferent appearance as other models, its due to Huawei E398s-81 supports the TDD & FDD LTEband simultaneously, which covers the 4G LTE TDD 2300/2600MHz and FDD 2600MHz.As the one of the most frequency bands for TDD, band 38 (2600MHz) and band 40 (2300Mhz) areinvested by many operators who are planning or already launched TDD networks.Today, we get the Huawei E398s-81 4G LTE TDD FDD Surf stick with HUAWEI logo on it. It seemsthat it’s SIM card free and unlocked to any operators. Usually, if there is an operator’s logo onHUAWEI E398 modem, it may be a locked one, but the modem could be unlocked by somemethods.
From the appearance, we could see that HUAWEI E398s-81 is just like other E398 branch models,with the rotatable USB design. There is only HUAWEI 4G on the USB. No other logo was printedon the back.As previously mentioned, Huawei E398s-81 could support the LTE bands/Spectrum above: 4G LTEFDD 2600MHz and TDD 2300/2600MHz. This should be the most important difference betweenHUAWEI E398u-1, E398u-15 and E398u-18.
With same appearance of E398u-11 and E398u-15, Huawei E398s-81 has two external antennaconnectors beside the two sides of Micro SD slot. If user wants to use data card with MIMOtechnology, HUAWEI E398s-81 is a good option optional. Here now, only few models of 4G LTEUSB Surfstick are available on the market for both TDD and FDD networks. HUAWEI E398s-81should be a good one based on HUAWEI prestige.Unlike other E398 Modems, Huawei E398s-81 could not work with 3G UMTS network or 2GGSM/GPRS network. So Huawei E398S-81 could only work on 4G LTE networks. If 4G networksare not available in certain place, HUAWEI E398s-81 can’t work. So users may consider thisbefore they buy it.
As the brother model, Huawei E392 4G FDD TDD multi-mode data card also has one similarmodel, the model number is Huawei E392u-92. HUAWEI E392u-92 supports 4G TDD 2300/2600Mhz, but HUAWEI E392u-92 can’t support 4G FDD networks.If you want know more details of them, welcome to buy it from www.4gltemall.com .