Bitcoin faces resistance at the upper side, getting stuck at high levels.

The 4-hour chart shows continuous upward movement, but the pace is slowing down,
Bollinger Bands are beginning to narrow, indicating the market is consolidating in a direction.
It's very clear from the chart:
Every upward push is quickly pushed back down, with heavy resistance around 79,500, layer after layer of selling pressure pushing down.
Although the bulls are still trying to hold, it's obvious they are struggling to keep up.
This situation essentially is:
Failed attempts to break higher, followed by oscillation and shakeout, waiting for the next move.
In the short term, it’s unlikely to break through this range directly; it looks more like a pullback before choosing a new direction.
Trading strategy: Follow the trend, mainly shorting on rallies.
Bitcoin: 79,200—79,900 range, gradually aiming for targets of 76,000 → 74,000 with support at 81,000.
Altcoin: 2,410—2,430 range, aiming for short targets of 2,350 → 2,300 with support at 2,480.