The tournament's average viewership was 95,257, with total watch time exceeding 6.8 million hours. English emerged as the most popular broadcast language, and twitch was the primary platform. The tournament aired for over 71 hours.

Top 5 BLAST Slam IV Matches by Peak Viewership:

1. Tundra Esports  vs  Team Falcons  — 289,202 viewers (grand final, November 9)
2. Aurora Gaming vs HEROIC — 135,873 viewers (quarterfinal, November 7)
3. Team Spirit vs MOUZ — 135,691 viewers (quarterfinal, November 7)
4. Team Falcons  vs HEROIC — 129,541 viewers (semifinal, November 8)
5. Team Spirit vs  Team Falcons  — 121,724 viewers (group stage, October 16)

Tundra Esports led the tournament in total watch hours, amassing over 2 million hours.