Fans of the TV anime Mushoku Tensei: Isekai Ittara Honki Dasu will soon be able to wear their love for the series on their wrist. A new collaboration smartwatch line featuring Rudeus, Sylphiette, Roxy, and Eris has been announced, with pre-orders opening on September 25, 2026, and the official release scheduled for October 23, 2026.
The anime, based on the light novel by Rifujin na Magonote, follows a 34-year-old shut-in who reincarnates as the boy Rudeus and strives to live his new life to the fullest in a world of swords and magic. The third season is currently airing since July 5, 2026.
The collaboration comes from GARRACK, a brand dedicated to character collaborations. Four designs are available, each themed after one of the four main characters: Rudeus, Sylphiette, Roxy, and Eris.
Each smartwatch features a character-inspired belt design and a custom watch face. The device offers fast charging and a long battery life of up to 14 days on a single charge, along with stress and activity tracking.
The watch faces include playful details tied to the series’ world. For instance, the character on the face changes from their first-season appearance to third-season appearance based on step count. Battery level also affects the display of each character’s weapon.
Weighing only 16g without the belt and using a soft band material, the watch is designed for comfortable all-day wear. A black replacement belt is included for versatility.
Rudeus Model
The Rudeus model changes the effect of Aqua Heartia based on battery level, reflecting his growth throughout his adventure. A workout shortcut is placed on the watch face.
When a notification arrives, an icon of Rudeus’s diary appears. The watch face character changes with each step, resetting at 10,000 steps.
Sylphiette Model
For Sylphiette, the staff effect changes according to battery level. Since she uses healing magic, a breathing exercise shortcut is included.
Notifications show an icon of Sylphiette’s pendant, and the watch face character evolves with step count, resetting at 10,000 steps.
Roxy Model
The Roxy model varies the effect on her staff with battery level. With her use of rain and lightning magic, a weather shortcut is available.
Her pendant icon appears for notifications, and the watch face character steps through changes, resetting at 10,000.
Eris Model
The Eris model changes the design of her sword depending on battery level, symbolizing her growth through training. A workout shortcut is included.
Notifications bring up an icon of the letter Eris wrote to Rudeus, and the watch face character changes with steps, resetting at 10,000.
In addition to the character-specific features, the smartwatches come with workout tracking, stress measurement, music remote control, and a remote shutter function. Each model arrives in a specially designed box featuring the character.
All four models are priced at 10,890 yen (tax included), offering a budget-friendly way to enjoy the world of Mushoku Tensei while staying active.
| Model | Item Number | Price (tax incl.) |
|---|---|---|
| Rudeus Model | HUC-MT-BD11-RG | 10,890 yen |
| Sylphiette Model | HUC-MT-BD11-S | 10,890 yen |
| Roxy Model | HUC-MT-BD11-RM | 10,890 yen |
| Eris Model | HUC-MT-BD11-E | 10,890 yen |
(C) 理不尽な孫の手/MFブックス/「無職転生Ⅲ」製作委員会
