The Samsung HW-S40T vs Vizio V51-H6 comparison shows that these models have some important differences and common features. The Samsung HW-S40T was rated 5, while the Vizio V51-H6 has a rating 6. The soundbars are equipped with a different number of buttons, volume down, volume up, power, source for the HW-S40T and power, volume down, volume up, source, Bluetooth for the V51-H6.
Each of the models under consideration has active amplification type. A noticeable difference is the number of channels that HW-S40T has 2.0 and V51-H6 has 5.1. A built-in subwoofer is available only in the Samsung HW-S40T. Rate 6 out of 10 received the Samsung HW-S40T for audio features and specs, but the Vizio V51-H6 received 7 out of 10.
Soundbars do not have AirPlay support. The units in this comparison do not support Spotify.
Both models do not have a wireless Wi-Fi interface. Soundbars from this comparison have Bluetooth support. There are 1/0 HDMI inputs/outputs in the Samsung HW-S40T versus 0/1 HDMIs in the Vizio V51-H6. The HDMI Audio Return Channel (ARC) is implemented only in the V51-H6. Connecting devices via USB is possible in both models. The connectivity of each of the models was estimated at 6/10. Each of the soundbars can be controlled using the application. The Vizio V51-H6 equipped with a microphone. The models under consideration cannot become part of a multiroom system.
Dolby Atmos audio decoder support is not implemented in either the HW-S40T or V51-H6. Devices from this comparison cannot process surround sound due to lack of DTS:X. The same score of 5/10 was put to the soundbars for multichannel surround support.