Latest Mobile Silk 83 user agents:

User Agent Platform Device
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.4.3 like Chrome/83.0.4103.106 Safari/537.36 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.3.19 like Chrome/83.0.4103.106 Safari/537.36 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.2.20 like Chrome/83.0.4103.106 Safari/537.36 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.1.135 like Chrome/83.0.4103.101 Safari/537.36 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.1.130 like Chrome/83.0.4103.101 Safari/537.36 GNU/Linux Unknown
Mozilla/5.0 (Linux; Android 9; KFONWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.4.3 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire HD 8 (2020)
Mozilla/5.0 (Linux; Android 9; KFONWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.3.11 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire HD 8 (2020)
Mozilla/5.0 (Linux; Android 9; KFONWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.1.130 like Chrome/83.0.4103.101 Safari/537.36 Fire OS 7 Fire HD 8 (2020)
Mozilla/5.0 (Linux; Android 9; KFMUWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.4.3 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire 7" (2019)
Mozilla/5.0 (Linux; Android 9; KFMUWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.2.20 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire 7" (2019)
Mozilla/5.0 (Linux; Android 9; KFMAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.4.3 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire HD 10 (2019)
Mozilla/5.0 (Linux; Android 9; KFMAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.3.11 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire HD 10 (2019)
Mozilla/5.0 (Linux; Android 9; KFMAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.2.20 like Chrome/83.0.4103.106 Safari/537.36 [ip:92.211.217.232] Fire OS 7 Fire HD 10 (2019)
Mozilla/5.0 (Linux; Android 9; KFMAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.2.20 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire HD 10 (2019)
Mozilla/5.0 (Linux; Android 9; KFMAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.1.130 like Chrome/83.0.4103.101 Safari/537.36 Fire OS 7 Fire HD 10 (2019)
Mozilla/5.0 (Linux; Android 9; KFKAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.4.3 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire HD 8 (2018)
Mozilla/5.0 (Linux; Android 9; KFKAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.3.11 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire HD 8 (2018)
Mozilla/5.0 (Linux; Android 9; KFKAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.2.20 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire HD 8 (2018)
Mozilla/5.0 (Linux; Android 9; KFKAWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.1.130 like Chrome/83.0.4103.101 Safari/537.36 Fire OS 7 Fire HD 8 (2018)
Mozilla/5.0 (Linux; Android 9; KFGIWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/83.4.3 like Chrome/83.0.4103.106 Safari/537.36 Fire OS 7 Fire HD 8 (2016)