Latest Zen 1 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.4.2; ru-ru; HTC Desire 626G dual sim Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36 ZenKit/1.39.3.3-internalNewdesign-Zen Android 4 Desire 626G Dual SIM
Mozilla/5.0 (Linux; U; Android 4.3; ru-ru; HUAWEI B199 Build/HuaweiB199) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 com.yandex.zen/4.9.0.2575 (HUAWEI HUAWEI B199; Android 4.3) ZenKit/1.40.9.0-internalNewdesign-Zen.8433 Android 4 B199
Mozilla/5.0 (Linux; U; Android 4.0.3; ru-ru; HUAWEI U8666E Build/HuaweiU8666E) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 ZenKit/1.37.2.3-internalNewdesign-ZenKit-SDK Android 4 U8666E
Mozilla/5.0 (Linux; Android 9; ZTE Blade L8RU Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 ZenKit/1.39.6.0-internalNewdesign-Zen Android 9 Blade L8
Mozilla/5.0 (Linux; Android 9; V1928A Build/PKQ1.190626.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.149 Mobile Safari/537.36 com.yandex.zen/5.1.0.2674 (vivo V1928A; Android 9) ZenKit/1.41.1.0-internalNewdesign-Zen.871 Android 9 U3X
Mozilla/5.0 (Linux; Android 9; V1923A Build/PKQ1.190714.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/81.0.4044.117 Mobile Safari/537.36 com.yandex.launcher/2.3.6-beta-feedbackLogs.7003668 (vivo V1923A; Android 9) ZenKit/1.41.1.2 Android 9 Nex 3
Mozilla/5.0 (Linux; Android 9; V1923A Build/PKQ1.190714.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.132 Mobile Safari/537.36 com.yandex.zen/5.0.0.2643 (vivo V1923A; Android 9) ZenKit/1.41.0.0-internalNewdesign-Zen.855 Android 9 Nex 3
Mozilla/5.0 (Linux; Android 9; V1923A Build/PKQ1.190714.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/78.0.3904.96 Mobile Safari/537.36 com.yandex.zen/4.4.0.2189 (vivo V1923A; Android 9) ZenKit/1.40.4.0-internalNewdesign-Zen.7576 Android 9 Nex 3
Mozilla/5.0 (Linux; Android 9; V1922A Build/PKQ1.190714.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 com.yandex.zen/4.6.0.2379 (vivo V1922A; Android 9) ZenKit/1.40.6.0-internalNewdesign-Zen.793 Android 9 iQOO Pro
Mozilla/5.0 (Linux; Android 9; V1921A Build/PKQ1.181030.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/81.0.4044.117 Mobile Safari/537.36 com.yandex.zen/5.7.0.3179 (vivo V1921A; Android 9) ZenKit/1.41.7.0-internalNewdesign-Zen.946 Android 9 Z5
Mozilla/5.0 (Linux; Android 9; V1914A Build/PKQ1.181016.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.87 Mobile Safari/537.36 com.yandex.zen/4.7.1.2462 (vivo V1914A; Android 9) ZenKit/1.40.7.1-internalNewdesign-Zen.8178 Android 9 iQOO Neo
Mozilla/5.0 (Linux; Android 9; V1911A Build/PKQ1.181030.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/78.0.3904.108 Mobile Safari/537.36 com.yandex.launcher/2.3.5-beta-feedbackLogs.7003648 (vivo V1911A; Android 9) ZenKit/1.40.2.0 Android 9 Z5x
Mozilla/5.0 (Linux; Android 9; V1901A Build/P00610; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/78.0.3904.108 Mobile Safari/537.36 com.yandex.zen/4.5.1.2323 (vivo V1901A; Android 9) ZenKit/1.40.5.1-internalNewdesign-Zen.7853 Android 9 Y3
Mozilla/5.0 (Linux; Android 9; V1836A Build/PKQ1.181030.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.99 Mobile Safari/537.36 com.yandex.zen/4.8.1.2542 (vivo V1836A; Android 9) ZenKit/1.40.8.1-internalNewdesign-Zen.8337 Android 9 X27 Pro
Mozilla/5.0 (Linux; Android 9; V1836A Build/PKQ1.181030.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.99 Mobile Safari/537.36 com.yandex.zen/4.7.1.2462 (vivo V1836A; Android 9) ZenKit/1.40.7.1-internalNewdesign-Zen.8178 Android 9 X27 Pro
Mozilla/5.0 (Linux; Android 9; V1836A Build/PKQ1.181030.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.132 Mobile Safari/537.36 com.yandex.zen/4.9.0.2575 (vivo V1836A; Android 9) ZenKit/1.40.9.0-internalNewdesign-Zen.843 Android 9 X27 Pro
Mozilla/5.0 (Linux; Android 9; V1836A Build/PKQ1.181030.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.117 Mobile Safari/537.36 com.yandex.zen/4.8.1.2542 (vivo V1836A; Android 9) ZenKit/1.40.8.1-internalNewdesign-Zen.833 Android 9 X27 Pro
Mozilla/5.0 (Linux; Android 9; V1836A Build/PKQ1.181030.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.116 Mobile Safari/537.36 com.yandex.zen/4.3.0.2106 (vivo V1836A; Android 9) ZenKit/1.40.3.0-internalNewdesign-Zen.724 Android 9 X27 Pro
Mozilla/5.0 (Linux; Android 9; V1813BA Build/PKQ1.181030.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/81.0.4044.117 Mobile Safari/537.36 com.yandex.zen/5.7.0.3179 (vivo V1813BA; Android 9) ZenKit/1.41.7.0-internalNewdesign-Zen.9 Android 9 Z3
Mozilla/5.0 (Linux; Android 9; V1813BA Build/PKQ1.181030.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.93 Mobile Safari/537.36 com.yandex.zen/4.6.0.2379 (vivo V1813BA; Android 9) ZenKit/1.40.6.0-internalNewdesign-Zen.79 Android 9 Z3