The Lenovo Education Store has discounted the S540 13" with a 2560*1600 display and AMD Ryzen 4600U (6C/12T) CPU to $1129. If you login via UNiDAYS and use the suggested coupon code, you will obtain a further 5% discount. This reduces the price down to $1082, with shipping in two business days.
The 4800U (8C/16) version of the S540 13" with 16GB RAM is also discounted to $1269, and $1205.55 with 5% UNiDAYS discount. Shipping time is over 8 weeks for the higher specification version.
Few of the benefits of the S540 13" beyond the screen and CPU are an all Aluminum chassis, better cooling capability and the ability to adjust the TDP in BIOS between three different modes.
Update: As of 7:45pm, 29/09/2020, it looks like the UNiDays Lenovo link is directing to the regular online store and not the education store. Hence the change in pricing and the inability to use the code.