Samsung Galaxy S21 Ultra is a high-end flagship released in 2021, known for its powerful performance, advanced camera system, and premium design. Even in 2026, it remains a solid option for users looking for flagship features at a lower price.
⭐ Key Features
📸 108MP Camera – Zoom & Detail Power
- 108MP main camera
- 10x periscope zoom + 3x telephoto
- 12MP ultra-wide
👉 Capture sharp photos with impressive long-range zoom capabilities.
📺 6.8” Dynamic AMOLED 2X – 120Hz, 2K
- Resolution: 3200 × 1440 (QHD+)
- Adaptive 10–120Hz refresh rate
- HDR10+ support
👉 Bright, smooth, and one of the best displays of its time.
⚡ Flagship Performance (Snapdragon 888 / Exynos 2100)
- 5nm chipset
- RAM: 12GB – 16GB
👉 Still handles daily tasks and gaming reasonably well.
🔋 5000mAh Battery
- All-day battery life
- Fast charging + wireless + reverse charging
👉 Reliable for most users, though not the fastest charging today.
💎 Premium Build + IP68
- Glass back with aluminum frame
- Water & dust resistance
👉 Durable and high-end design.
✍️ S Pen Support (Optional)
- Supports S Pen (sold separately)
👉 Adds productivity features similar to Note series.
📊 Specifications
- Display: 6.8” AMOLED 2X, 120Hz
- Processor: Snapdragon 888 / Exynos 2100
- RAM/Storage: 12GB–16GB / 128GB–512GB
- Camera: 108MP + 10MP + 10MP + 12MP
- Battery: 5000mAh
- OS: Android (up to Android 14 / One UI 6)
💰 Price in Vietnam (2026)
- Used / like new: ~7 – 10 triệu
- New (rare): ~11 – 14 triệu
👉 Giá tốt cho một flagship cũ
🎯 Pros & Cons
✅ Pros:
- Camera mạnh với zoom 10x
- Màn hình đẹp, độ phân giải cao
- Pin tốt
- Giá hiện tại rất hợp lý
❌ Cons:
- Chip Snapdragon 888 dễ nóng khi chơi game
- Không còn cập nhật lâu dài
- Không có S Pen tích hợp
🏆 Final Verdict
👉 Có nên mua Samsung Galaxy S21 Ultra năm 2026?
✔ Nên mua nếu bạn muốn:
- Flagship giá rẻ
- Camera đẹp + zoom xa
- Màn hình chất lượng cao
❌ Không nên nếu:
- Bạn cần hiệu năng mạnh cho game nặng
- Muốn dùng lâu 3–5 năm
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