As with all new Pokémon generations, Pokémon Sun & Moon rebalances moves, stats and in the case of Pokémon Sun & Moon, Items. Click their names to go to the Item Database page for it.

Picture Name Description Alteration
Aguav Berry If held by a Pokémon, it restores the user’s HP in a pinch, but it will cause confusion if the user hates the taste.It now boosts health by 50% Max HP when Pokémon drops below 25%
Figy Berry If held by a Pokémon, it restores the user’s HP in a pinch, but it will cause confusion if the user hates the taste.It now boosts health by 50% Max HP when Pokémon drops below 25%
Fresh Water Water with a high mineral content. When consumed, it restores up to 30 HP to an injured Pokémon.Hit Points recovered dropped from 50HP to 30HP
Hyper Potion A spray-type medicine for treating wounds. It can be used to restore 120 HP to an injured Pokémon.Hit Points recovered dropped from 200HP to 120HP
Iapapa Berry If held by a Pokémon, it restores the user’s HP in a pinch, but it will cause confusion if the user hates the taste.It now boosts health by 50% Max HP when Pokémon drops below 25%
Lemonade A very sweet and refreshing drink. When consumed, it restores up to 70 HP to an injured Pokémon.Hit Points recovered dropped from 80HP to 70HP
Lure Ball A Poké Ball that is good for catching Pokémon that you reel in with a Rod while out fishing.Capture Rate modifier has been changed from *3 to *5 when catching hooked Pokémon
Mago Berry If held by a Pokémon, it restores the user’s HP in a pinch, but it will cause confusion if the user hates the taste.It now boosts health by 50% Max HP when Pokémon drops below 25%
Nest Ball A somewhat different Poké Ball that becomes more effective the lower the level of the wild Pokémon.Capture Rate modifier has been changed to (8-0.2*(level - 1)). Minimum 1
Net Ball A somewhat different Poké Ball that is more effective when attempting to catch Water- or Bug-type Pokémon.Capture Rate modifier has been changed to *3.5 rather than *3
Power Anklet An item to be held by a Pokémon. It reduces Speed but allows the holder’s Speed stat to grow more after battling.Effort Point boost has changed from +4 to +8
Power Band An item to be held by a Pokémon. It reduces Speed but allows the holder’s Sp. Def stat to grow more after battling.Effort Point boost has changed from +4 to +8
Power Belt An item to be held by a Pokémon. It reduces Speed but allows the holder’s Defense stat to grow more after battling.Effort Point boost has changed from +4 to +8
Power Bracer An item to be held by a Pokémon. It reduces Speed but allows the holder’s Attack stat to grow more after battling.Effort Point boost has changed from +4 to +8
Power Lens An item to be held by a Pokémon. It reduces Speed but allows the holder’s Sp. Atk stat to grow more after battling.Effort Point boost has changed from +4 to +8
Power Weight An item to be held by a Pokémon. It reduces Speed but allows the holder’s maximum HP to grow more after battling.Effort Point boost has changed from +4 to +8
Repeat Ball A somewhat different Poké Ball that works especially well on a Pokémon species that has been caught before.Capture Rate modifier has been changed to *3.5 rather than *3
Soda Pop A highly carbonated soda drink. When consumed, it restores up to 50 HP to an injured Pokémon.Hit Points recovered dropped from 60HP to 50HP
Soul Dew A wondrous orb to be held by either Latios or Latias. It raises the power of Psychic- and Dragon-type moves Effect changed from boosting Latios & Latias' Special Attack & Special Defense by 1 stage to boosting their Psychic & Dragon-type moves by 20%
Super Potion A spray-type medicine for treating wounds. It can be used to restore 60 HP to an injured Pokémon.Now recovers 60HP rather than 50HP
Timer Ball A somewhat different Poké Ball that becomes progressively more effective the more turns that are taken in battle.Capture Rate modifier has been changed to (1+.3*Turn Number). Maximum 4
Wiki Berry If held by a Pokémon, it restores the user’s HP in a pinch, but it will cause confusion if the user hates the taste.It now boosts health by 50% Max HP when Pokémon drops below 25%
X Accuracy An item that sharply boosts the accuracy of a Pokémon during a battle. It wears off once the Pokémon is withdrawn.Increases the stat by 2 stages rather than 1
X Attack An item that sharply boosts the Attack stat of a Pokémon during a battle. It wears off once the Pokémon is withdrawn.Increases the stat by 2 stages rather than 1
X Defense An item that sharply boosts the Defense stat of a Pokémon during a battle. It wears off once the Pokémon is withdrawn.Increases the stat by 2 stages rather than 1
X Special An item that sharply boosts the Sp. Atk stat of a Pokémon during a battle. It wears off once the Pokémon is withdrawn.Increases the stat by 2 stages rather than 1
X Sp. Def An item that sharply boosts the Sp. Def stat of a Pokémon during a battle. It wears off once the Pokémon is withdrawn.Increases the stat by 2 stages rather than 1
X Speed An item that sharply boosts the Speed stat of a Pokémon during a battle. It wears off once the Pokémon is withdrawn.Increases the stat by 2 stages rather than 1