Which to Choose: Spark or Sierra in Holiday Research?

In every Pokémon GO branching research path, a choice must be made. This time, the game offers little guidance on whether assisting Spark or Sierra best aligns with Holiday Part 1 objectives.

Pokémon GO Holiday Part 1 Branching Research Dates

Surprisingly, Niantic's official announcement omits the free event research, mentioning only Field Research and the paid Timed Research. However, a free research path is available to all trainers, running from December 17th to December 22nd at 9:59 AM local time.

This "Holiday Part 1" research features three sections. After completing the first, players choose between aiding Team Instinct's Spark or pursuing Team GO Rocket's Sierra. Which path should you select?

Related: Optimal Pokémon GO Holiday Cup Little Edition Teams

Spark or Sierra in Pokémon GO Holiday Part 1 Event Research?

The differences between the choices are subtle. Your decision hinges on preferred Pokémon types and reward encounters. Let's compare Spark and Sierra to aid your decision.

Spark's Research Tasks & Rewards

Part 2

Part 3

Note: Part 3 Pokémon types and power-up tasks vary depending on your choice (Spark or Sierra), but rewards remain consistent, including the Sandygast encounter.

Sierra's Research Tasks & Rewards

Part 2

Part 3

Your decision ultimately depends on your preferred Vulpix encounter and desired Pokémon type focus during the Holiday Part 1 event.

Pokémon GO is currently available.