LaCie Rugged SSD Pro wins on raw speed and extreme durability with 2800 MB/s Thunderbolt and IP67/1-ton rating per LaCie specs, beating the T7 Shield's 1050 MB/s and IP65. The Samsung model counters with half the weight and better value for everyday use. Choose LaCie for Mac-based 4K workflows; pick T7 Shield for lighter travel and Windows/Android backups.