Silver Bangle is an accessory that grants a maximum HP bonus of between 100 and 180, depending on it's level, and upgrades to the Tungsten Bangle by using the Rhodochrosite item. It can be upgraded from the Iron Bangle by using the Millerite item. A Silver Bangle can be found in the Amid Tidebound Waves area of Lake Bresha, and one is received from defeating the Garuda Interceptor boss.
Silver Bangle is an accessory that grants a maximum HP bonus of +16%. It uses 45 weight capacity and it's synthesized ability is High HP: Power Surge. Silver Bangles can be bought in Yaschas Massif in the 10 AF and 1X AF time periods for 500 gil. It is the prize for the Behemoth Special chocobo race in Serendipity, and it is the rare drop for the Atlas boss fight.
Silver Bangle is an accessory that provides HP +30% to the wearer. It can be bought for 2000 gil from Iscah, obtained as special bounty for completing The Capture of Togoreth Stronghold and for earning S-rank on the same mission.