The Samsung T7 and the Samsung T7 Shield are recorded as the same drive in two bodies. Both record the USB 3.2 Gen 2 interface at 10 Gbps, a read speed of up to 1,050 MB/sec, a write speed of up to 1,000 MB/sec, capacities of 1 TB, 2 TB and 4 TB, AES 256-bit hardware encryption and a three year limited warranty. The differences the catalogue records are the drop rating, the water rating and the size and weight of the case.
Every value here comes from the specifications recorded against each product, and each of those carries the manufacturer page it was read from. No drive was handled for this comparison, so nothing here claims a measured transfer rate, a durability result or a price.
What actually differs
Drop rating. The T7 Shield records a drop resistance of up to 3 m. The plain T7 records a shock resistance of up to 2 m. That is the core of the comparison, and it is a distance rather than a description.
Water rating. The T7 Shield records a water resistance of IP 65. The plain T7 records no water resistance figure at all. The two drop values sit under different specification keys in the catalogue, because the manufacturer pages label them differently, so the comparison reads two separate entries rather than one shared row.
Weight and size. The T7 Shield records 98 g and dimensions of 59 by 88 by 13 mm. The plain T7 records dimensions of 85 by 57 by 8 mm, which is the flatter and narrower object, and a recorded weight of 72 g on the datasheet and 2.0 oz on the product page. That weight entry is marked as conflicting in the catalogue, so the gap between the two drives is close to 26 g without being an exact figure.
What does not differ. The interface, the two speed figures, the three capacities, the encryption and the warranty are recorded identically for both. The speed figures are recorded as up to values for each drive, and neither records a sustained rate.
Who should pick which
The T7 Shield is the choice for a drive that goes into a tool bag, a van, a field kit or a pocket on a trip, because the recorded IP 65 water rating and the recorded 3 m drop rating are the reason it exists. The plain T7 is the choice for a drive that lives in a laptop bag between a desk and a sofa, where the recorded 85 by 57 by 8 mm body is smaller in every dimension and the recorded weight is lower.
What this comparison does not settle
It does not settle price, because no price is recorded for either drive. It does not settle sustained performance, because both speed figures are peaks and no sustained rate is recorded for either. It does not settle the exact weight gap, because the T7's weight entry is marked as conflicting. It does not settle what the IP 65 code covers in practice, since no immersion time or seal detail is recorded for the Shield. It does not settle availability.
What it does settle is that the two drives share the recorded speed, capacity, encryption and warranty, and that the Shield's recorded protection ratings and extra weight are the whole of the difference between them.