Latest Mobile Silk 90 user agents:

User Agent Platform Device
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.3.2 like Chrome/90.0.4430.210 Safari/537.36 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.3.1 like Chrome/90.0.4430.210 Safari/537.36 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.1.83 like Chrome/90.0.4430.91 Safari/537.36 GNU/Linux Unknown
Mozilla/5.0 (Linux; Android 9; KFTRWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.3.1 like Chrome/90.0.4430.210 Safari/537.36 Fire OS 7 Fire HD 10 (2021)
Mozilla/5.0 (Linux; Android 9; KFTRWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.2.49 like Chrome/90.0.4430.91 Safari/537.36 Fire OS 7 Fire HD 10 (2021)
Mozilla/5.0 (Linux; Android 9; KFTRWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.1.86 like Chrome/90.0.4430.91 Safari/537.36 Fire OS 7 Fire HD 10 (2021)
Mozilla/5.0 (Linux; Android 9; KFTRPWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.3.1 like Chrome/90.0.4430.210 Safari/537.36 Fire OS 7 Fire HD 10 Plus (2021)
Mozilla/5.0 (Linux; Android 9; KFTRPWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.2.49 like Chrome/90.0.4430.91 Safari/537.36 Fire OS 7 Fire HD 10 Plus (2021)
Mozilla/5.0 (Linux; Android 9; KFTRPWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.1.86 like Chrome/90.0.4430.91 Safari/537.36 Fire OS 7 Fire HD 10 Plus (2021)
Mozilla/5.0 (Linux; Android 9; KFONWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.3.1 like Chrome/90.0.4430.210 Safari/537.36 Fire OS 7 Fire HD 8 (2020)
Mozilla/5.0 (Linux; Android 9; KFONWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.2.33 like Chrome/90.0.4430.210 Safari/537.36 Fire OS 7 Fire HD 8 (2020)
Mozilla/5.0 (Linux; Android 9; KFONWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.1.83 like Chrome/95.0.4609.3 Safari/537.36 Fire OS 7 Fire HD 8 (2020)
Mozilla/5.0 (Linux; Android 9; KFONWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.1.83 like Chrome/93.0.4542.0 Safari/537.36 Fire OS 7 Fire HD 8 (2020)
Mozilla/5.0 (Linux; Android 9; KFONWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.1.83 like Chrome/90.0.4430.91 Safari/537.36 Fire OS 7 Fire HD 8 (2020)
Mozilla/5.0 (Linux; Android 9; KFMUWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.2.33 like Chrome/90.0.4430.210 Safari/537.36 Fire OS 7 Fire 7" (2019)
Mozilla/5.0 (Linux; Android 9; KFMUWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.1.83 like Chrome/90.0.4430.91 Safari/537.36 Fire OS 7 Fire 7" (2019)
Mozilla/5.0 (Linux; Android 9; KFMAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.3.1 like Chrome/90.0.4430.210 Mobile Safari/537.36 Fire OS 7 Fire HD 10 (2019)
Mozilla/5.0 (Linux; Android 9; KFMAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.2.4 like Chrome/90.0.4430.91 Safari/537.36 Fire OS 7 Fire HD 10 (2019)
Mozilla/5.0 (Linux; Android 9; KFMAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.2.33 like Chrome/90.0.4430.210 Safari/537.36 Fire OS 7 Fire HD 10 (2019)
Mozilla/5.0 (Linux; Android 9; KFKAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/90.2.33 like Chrome/90.0.4430.210 Safari/537.36 Fire OS 7 Fire HD 8 (2018)