Protests:
(participants)/(arrested)
Novosibirsk 70-100/1
Irkutsk 60-70/20
Voronezh 50-70/22
Ufa 80-100/30
Ekaterinburg 100-120/40
Sankt-Petersburg 2000-2500/490
Moscow 2500-3000/ below 600 (update: 468)
There were also more minor meetings below 50 participants in some cities (update: total number of cities including these above: 38). Medias publishing reports about such events without censorship. Example:
https://www.kommersant.ru/doc/5571951 (Russian language)
In total arrested about 1300 (update: 1312). They got official warnings in police and were released within 3 hours.
Russia has 25 mln reservists. Govt call 300K of them: who served in army no more than 3 years ago, age below 35 yo. Payment starts from $3500 monthly and depends on military rang, state medical insurance, death insurance $60K.