The Samsung Galaxy S9 and Galaxy S9+ are officially hitting stores tomorrow — though they’re already in the hands of some pre-order customers — and to celebrate, T-Mobile decided to try and set some Guinness World Records.

A video posted by T-Mobile today shows the carrier setting two Guinness World Records using the Samsung Galaxy S9. The first tasks a water skier with setting the record for fastest text on a touchscreen mobile phone while being towed by a blimp, and the second record is the greatest distance water skied by being towed by a blimp.

As a reminder, the Galaxy S9 costs $0 down and $30 per month for 24 months on EIP, $0 down and $32 per month with JUMP! On Demand, or $720 full retail. The Galaxy S9+ will set you back $120 down and $30 per month on EIP, $0 down and $37.67 per month on JOD, or $840 full retail.

T-Mobile is offering a trade-in deal that’ll get you up to $360 off the S9 or S9+ via monthly bill credits when you trade in an eligible smartphone. The smartphones eligible for this offer include:

• $360: Samsung Galaxy S8, Samsung Galaxy S8+, Samsung Galaxy S8 Active, Samsung Galaxy S7, Samsung Galaxy S7 Edge, Samsung Galaxy S7 Active, Samsung Note8, Apple iPhone 8, Apple iPhone 8 Plus, Apple iPhone 7, Apple iPhone 7 Plus, Apple iPhone 6s, Apple iPhone 6s Plus, LG V30, LG V30+
• $200: Samsung Galaxy S6, Samsung Galaxy S6 Edge, Samsung Galaxy S6 Edge+, Samsung Galaxy S6 Active, Samsung Galaxy S5, Samsung Galaxy S4, Samsung Note4, Samsung Note5, Apple iPhone 6, Apple iPhone 6 Plus, Apple iPhone 5s, Apple iPhone SE, LG G6, LG G5, LG V20

Source: T-Mobile