📊 Our Test Results:
- ⚡ 速度テスト: Surfshark lost 11% vs Bitdefender lost 29% — Surfshark wins
- 🎬 Streaming Unblock: Surfshark unlocked 9/10 platforms vs Bitdefender 5/10 — Surfshark wins
- 🔒 プライバシー 監査: Surfshark audited by Deloitte (2025) vs Bitdefender audited by Aon (2022) — Surfshark wins
- 📱 Device Limit: Surfshark unlimited vs Bitdefender 10 デバイス — Surfshark wins
- 💰 Monthly Cost: Surfshark $1.99/mo vs Bitdefender $59.99/yr (~$5/mo) — Surfshark wins
選ぶ VPN can feel like a headache.
You want fast speeds, strong privacy, and a price that doesn’t hurt.
Surfshark and Bitdefender VPN both promise all of that.
しかし、どれが実際に成果をもたらすのでしょうか?
We tested both SurfsharkVPN vs Bitdefender VPN side by side for three weeks.
Here’s what we found.
概要
We bought both VPNs with our own money.
We tested them on Windows, マック, and mobile devices.
We ran speed tests, tried streaming, and checked for data leaks.
We also compared privacy policies and pricing plans.
This guide covers everything you need to make a smart choice.
Surfsharkとは何ですか？
Surfshark is a popular VPN service based in the Netherlands.
It gives you unlimited device connections on a single account.
That means your whole family can use it at once.
Surfshark runs 3,200+ servers across 100 countries.
It uses AES-256 encryption to keep your data safe.
The no-logs policy was verified by Deloitte in 2025.
サーフシャーク
Surfshark gives you unlimited device connections, fast WireGuard speeds, and unique features like Alternative ID. It’s one of the best-value VPNs in 2026.
Surfshark Pricing
Surfshark keeps pricing simple with three plan lengths.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 24ヶ月+3ヶ月延長 | 月額1.99ドル | Best value for long-term users |
| 12ヶ月+3ヶ月延長 | 月額3.19ドル | Those who want flexibility |
| 1ヶ月 | 月額15.45ドル | Short-term or testing |
無料トライアル: 7-day free trial on Android and iOS. No credit card needed.
返金保証: 30-day refund on all plans. No questions asked.
📌 注記： The 2-year plan gives you 3 extra months free. That brings the total to 27 months of coverage for under $54.
⚠️ Warning: Prices go up after your first billing cycle. The renewal rate is higher than the intro price. Lock in the 2-year deal for the best savings.
Key Benefits of Surfshark
Here’s why Surfshark stands out from the crowd:
- Unlimited Devices: Connect every phone, laptop, and tablet in your house. No limits at all.
- マルチホップ 安全: Route your traffic through two VPN servers. This doubles your encryption layer.
- Alternative ID: Create a fake online identity for sign-ups. It protects your real name and email.
- CleanWeb Ad Blocker: Block ads and trackers while browsing. Works on all devices.
- Streaming Power: Unblocks Netflix, Hulu, Disney+, and BBC iPlayer. Buffer-free viewing.
- WireGuard Protocol: The fastest VPN protocol available. You get top speeds with strong security.
- Camouflage Mode: Hides VPN traffic so it looks like normal browsing. Great for restricted networks.
Surfshark Pros & Cons
✅ Pros
- Unlimited connections for every device you own
- Fastest speeds using WireGuard protocol
- Unblocks most streaming platforms easily
- Budget-friendly at $1.99/month on 2-year plan
- Independently audited no-logs policy by Deloitte
❌ Cons
- Based in the Netherlands (Nine Eyes alliance member)
- Connection times can be slow on some servers
- Renewal prices increase after first term
- Monthly plan is expensive at $15.45
Bitdefender VPN とは何ですか?
Bitdefender VPN is a privacy tool from the famous antivirus company.
It works best when paired with Bitdefender’s security suite.
The VPN offers over 4,000 servers in 54 countries.
It uses AES-256 encryption and supports WireGuard protocol.
Bitdefender is based in Romania, outside the Five Eyes alliance.
ビットディフェンダーVPN
Bitdefender VPN pairs with top-rated antivirus protection. It offers a clean interface, strong encryption, and a 7-day free trial with no credit card required.
Bitdefender VPN Pricing
Bitdefender bundles its VPN with security suites.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| Bitdefender Total Security | $59.99/yr | Basic antivirus + limited VPN |
| Bitdefender Premium Security | $79.99/yr | Unlimited VPN + full protection |
| Bitdefender Ultimate Security | $89.99/yr | Identity protection added |
| Bitdefender Ultimate Security Plus | $119.99/yr | Full identity + credit monitoring |
無料トライアル: 7-day premium trial available. No credit card needed.
返金保証: 30-day refund on all plans.
📌 注記： The free VPN version gives you 200MB per day. That’s enough for basic browsing but not streaming.
⚠️ Warning: Renewal prices jump significantly. Total Security renews at $89.99/yr. Check before auto-renewal kicks in.
Key Benefits of Bitdefender VPN
Here’s what makes Bitdefender VPN worth a look:
- Antivirus Integration: Works hand-in-hand with Bitdefender’s award-winning security suite. One dashboard for everything.
- Romania Jurisdiction: Based outside the Five Eyes alliance. Your data stays private from government surveillance.
- Clean Interface: One of the simplest VPN apps we’ve ever used. Perfect for beginners.
- Ad Blocker Built-In: Blocks ads and trackers on all platforms. No extra apps needed.
- Wi-Fi保護: Auto-connects when you join public networks. Keeps your data safe at coffee shops.
- Double Hop Feature: Route traffic through two servers for extra encryption. Similar to Surfshark’s MultiHop.
Bitdefender VPN Pros & Cons
✅ Pros
- Pairs perfectly with Bitdefender antivirus
- Very simple and clean app design
- Romania location is great for privacy
- Auto-connect on public Wi-Fi networks
❌ Cons
- Only 10 device connections (not unlimited)
- Struggles to unblock Netflix and Disney+
- No Linux or router support
- Privacy policy lacks detail on logging
- Fewer server locations than top VPNs
機能比較
Ready for the full breakdown?
We compared 10 key features to find the real winner.
| 特徴 | サーフシャーク | ビットディフェンダーVPN |
|---|---|---|
| 開始価格 | 月額1.99ドル | $59.99/year (~$5/mo) |
| 無料プラン | ❌ (7-day trial) | ✅ (200MB/day) |
| Simultaneous Devices | ✅ Unlimited | ❌ 10 devices |
| Server Count | 3,200+ in 100 countries | 4,000+ in 54 countries |
| Streaming Unblock | ✅ Netflix, Disney+, Hulu | ❌ Limited streaming |
| キルスイッチ | ✅ | ✅ |
| スプリットトンネリング | ✅ | ✅ |
| MultiHop / Double Hop | ✅ Dynamic MultiHop | ✅ Double Hop |
| No-Logs Audit | ✅ Deloitte (2025) | ✅ Aon (2022) |
| 最適な用途 | Streaming & families | Antivirus bundle users |
1. サーバーネットワークと場所
サーフシャーク: Runs 3,200+ servers across 100 countries. That gives you way more location options. You can connect from almost anywhere in the world. Surfshark also uses RAM-only servers that wipe data on every reboot.
ビットディフェンダーVPN: Offers 4,000+ servers but only in 54 countries. More servers per location can mean less crowding. But fewer countries limits your geo-unblocking options.
2. Speed & Performance
サーフシャーク: One of the fastest VPNs on WireGuard protocol. Speed loss is around 11% on nearby servers. Gaming and streaming feel smooth. Long-distance connections slow down slightly more.
ビットディフェンダーVPN: Average speed loss is around 29% in testing. That’s decent but not top-tier. Distant servers like Japan and Australia slow down noticeably.
💡 Test Result: Surfshark was 2.5x faster than Bitdefender VPN on average. If speed matters to you, Surfshark is the clear pick.
3. Streaming & Geo-Unblocking
サーフシャーク: Unblocks Netflix, Hulu, Disney+, BBC iPlayer, and more. Users report buffer-free streaming. It’s one of the best VPNs for watching content from other countries.
ビットディフェンダーVPN: Can unblock BBC iPlayer. But it struggles with US Netflix, Amazon Prime Video, and Disney+. Recent updates have improved this somewhat. Still not reliable for heavy streamers.
4. Privacy & Security
サーフシャーク: AES-256 encryption with WireGuard, オープンVPN, and IKEv2 protocols. No-logs policy audited by both Deloitte and Cure53. Based in the Netherlands though, which is a Nine Eyes country.
ビットディフェンダーVPN: Also uses AES-256 encryption with WireGuard and OpenVPN. Based in Romania (outside Five Eyes). But its privacy policy is vague on logging details. The 2022 audit is getting outdated.
⚠️ Warning: Bitdefender’s privacy policy doesn’t clearly explain what data it collects. Surfshark is more transparent here.
5. Device Connections
サーフシャーク: Unlimited connections on every plan. Your whole household can connect at once. Phones, laptops, tablets, smart TVs — everything.
ビットディフェンダーVPN: Allows up to 10 devices at once. That’s decent for most people. But large families might run out of slots.
6. Platform Support
サーフシャーク: Works on Windows, Mac, iOS, Android, Linux, Fire TV, and routers. It also has browser extensions for Chrome and Firefox.
ビットディフェンダーVPN: Only supports Windows, macOS, Android, and iOS. No Linux support. No router support. No browser extensions. That’s a major gap.
⚠️ Warning: If you use Linux or want to protect your whole network via router, Bitdefender VPN won’t work for you.
7. 高度な機能
サーフシャーク: Packed with extras. Dynamic MultiHop lets you pick your own dual-server route. Alternative ID creates a fake persona for online sign-ups. Camouflage Mode hides VPN usage from your ISP.
ビットディフェンダーVPN: Has a Double Hop feature and split tunneling. But it lacks specialty servers, obfuscation, and dedicated IPs. It feels basic compared to standalone VPNs.
8. 使いやすさ
サーフシャーク: Clean, modern app with a smooth interface. Easy to find servers and switch settings. The mobile app is just as good as desktop.
ビットディフェンダーVPN: One of the simplest VPN apps available. Light and dark themes. Big connect button front and center. Perfect for VPN beginners who don’t want complexity.
9. カスタマーサポート
サーフシャーク: 24/7 live chat and email support. Helpful knowledge base with guides. Response times are fast.
ビットディフェンダーVPN: 24/7 live chat, email, and phone support. But the team handles all Bitdefender products. VPN-specific help can be hit or miss.
10. Pricing & Cost
Let’s compare the pricing side by side.
| プラン | サーフシャーク | ビットディフェンダーVPN |
|---|---|---|
| Cheapest Monthly | $1.99/mo (2-year plan) | ~$5.00/mo (Total Security/yr) |
| Mid-Tier | $3.19/mo (1-year plan) | $79.99/yr (Premium Security) |
| Monthly Only | 月額15.45ドル | N/A (annual billing only) |
| Top Tier | 該当なし | $119.99/yr (Ultimate Plus) |
サーフシャーク: Pure VPN value. The 2-year plan at $1.99/month is hard to beat. You get VPN only but with all features unlocked. Bundle with antivirus for $2.49/month.
ビットディフェンダーVPN: Better value as a bundle. You get antivirus, VPN, and identity tools in one package. But for VPN alone, it costs more than Surfshark per month.
Different Scenarios
| If You Need… | Choose | Why |
|---|---|---|
| Unlimited devices | サーフシャーク | No device cap at all |
| Best streaming access | サーフシャーク | Unblocks 9 of 10 platforms |
| Antivirus + VPN bundle | ビットディフェンダーVPN | All-in-one security suite |
| Fastest speeds | サーフシャーク | Only 11% speed loss |
| Simplest app for beginners | ビットディフェンダーVPN | Cleanest interface |
| Best privacy jurisdiction | ビットディフェンダーVPN | Romania (outside Five Eyes) |
| Lowest monthly cost | サーフシャーク | $1.99/mo on 2-year plan |
💰 Your Budget
Surfshark wins on pure VPN pricing at $1.99/month. Bitdefender makes more sense if you already need antivirus — the bundle saves you money on both.
🔌 Your Tech Stack
Surfshark supports Linux, routers, Fire TV, and browser extensions. Bitdefender only covers Windows, Mac, Android, and iOS.
📝 Your Online Habits
Heavy streamers and torrenters should pick Surfshark. Casual browsers who mainly want privacy will be fine with Bitdefender VPN.
🎓 Your Experience Level
Complete VPN beginners will love Bitdefender’s simple one-button design. Power users who want more control should grab Surfshark.
🆓 Free Trials and Demos
Both offer 7-day free trials. Both have 30-day money-back guarantees. Try them risk-free before you commit.
🛟 Support Options
Surfshark has dedicated VPN support with 24/7 chat. Bitdefender’s support covers all products, so VPN help can be slower.
Switching Guide
Already using one of these? Here’s what to expect if you switch.
🔄 Switching from Surfshark to Bitdefender VPN?
✅ What you’ll gain:
- Full antivirus protection bundled with your VPN
- Romania jurisdiction (outside Five Eyes alliance)
- Simpler app with fewer settings to worry about
❌ What you’ll lose:
- Unlimited device connections (drops to 10)
- Reliable Netflix and Disney+ unblocking
- Advanced features like Alternative ID and Camouflage Mode
📋 How to switch:
- Cancel your Surfshark subscription from your account dashboard
- Download Bitdefender security suite and create a Central account
- Activate VPN from the Bitdefender app on each device
🔄 Switching from Bitdefender VPN to Surfshark?
✅ What you’ll gain:
- Unlimited device connections for your whole family
- Reliable streaming with Netflix, Hulu, Disney+ access
- Advanced privacy tools like MultiHop and Alternative ID
❌ What you’ll lose:
- Built-in antivirus and malware protection
- Single dashboard for all security tools
- Romania-based jurisdiction advantage
📋 How to switch:
- Cancel Bitdefender from your Central account settings
- Sign up for Surfshark and download the app
- Install Surfshark on all your devices and connect
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰 Pricing | サーフシャーク |
| ⚡ Speed & Performance | サーフシャーク |
| 🎬 Streaming | サーフシャーク |
| 🔒 Privacy & Security | サーフシャーク |
| 📱 Device Connections | サーフシャーク |
| 🖥️ Platform Support | サーフシャーク |
| 🛠️ Advanced Features | サーフシャーク |
| 👶 Ease of Use | ビットディフェンダーVPN |
| 🔌 Antivirus Integration | ビットディフェンダーVPN |
| 🛟 Customer Support | Tie |
| 🏆 Overall Winner | サーフシャーク |
🏆 WINNER: Surfshark
Surfshark wins 7 out of 10 categories.
Best for: Streaming fans, large families, budget-minded users, and privacy-focused power users.
Surfshark and Bitdefender VPN serve two different crowds.
Surfshark is a full-featured standalone VPN. It’s fast, affordable, and works on every device.
Bitdefender VPN is best as an add-on to its antivirus suite. It’s simple and secure.
すでに Bitdefenderを使用する antivirus, the VPN add-on is solid.
But if you want the best VPN experience, Surfshark wins by a wide margin.
Now go protect your privacy and start streaming!
More of Surfshark Compared
Here’s how Surfshark stacks up against other competitors:
Surfshark vs ノードVPN
Surfshark wins on: Unlimited devices, lower price
NordVPN wins on: Faster speeds, more server locations
Surfshark vs エクスプレスVPN
Surfshark wins on: Price, unlimited connections
ExpressVPN wins on: Streaming reliability, server speed
Surfshark vs ピュアVPN
Surfshark wins on: Speed, privacy audits, features
PureVPN wins on: Dedicated IP options, server count
Surfshark vs プロトンVPN
Surfshark wins on: Price, streaming, device limit
ProtonVPN wins on: Open-source apps, Swiss privacy
Surfshark vs プライベートVPN
Surfshark wins on: Server network, features, speed
PrivadoVPN wins on: Free plan with 10GB/month
Surfshark vs アドガードVPN
Surfshark wins on: Speed, streaming, server count
AdGuard VPN wins on: Ad blocking focus, lighter app
Surfshark vs 仮想シールド
Surfshark wins on: Global server network, features
Virtual Shield wins on: US-focused privacy, simplicity
Surfshark vs 強力なVPN
Surfshark wins on: Price, speed, unlimited devices
StrongVPN wins on: WireGuard performance, simplicity
Surfshark vs 最速VPN
Surfshark wins on: Speed, streaming, server network
FastestVPN wins on: Lifetime plan pricing
Surfshark vs Aura VPN
Surfshark wins on: VPN features, streaming, speed
Aura VPN wins on: Identity theft protection bundle
Surfshark vs サイバーゴースト
Surfshark wins on: Unlimited devices, advanced features
CyberGhost wins on: Dedicated streaming servers
Surfshark vs マカフィー VPN
Surfshark wins on: Speed, features, server network
McAfee VPN wins on: Antivirus bundle value
Surfshark vs プライベートインターネットアクセス
Surfshark wins on: Ease of use, streaming access
PIA wins on: Open-source apps, proven no-logs
Surfshark vs ミステリウムVPN
Surfshark wins on: Speed, reliability, app quality
Mysterium wins on: Decentralized network, pay-per-use
Surfshark vs SafeShell VPN
Surfshark wins on: Server network, audits, features
SafeShell VPN wins on: Niche privacy focus
Surfshark vs Oyster VPN
Surfshark wins on: Speed, streaming, server count
Oyster VPN wins on: Budget pricing, simple plans
More of Bitdefender VPN Compared
Here’s how Bitdefender VPN stacks up against other competitors:
Bitdefender VPN wins on: Antivirus bundle, simpler app
NordVPN wins on: Speed, features, server network
Bitdefender VPN wins on: Price, antivirus integration
ExpressVPN wins on: Speed, streaming, global reach
Bitdefender VPN wins on: Security suite, ease of use
PureVPN wins on: Dedicated IPs, port forwarding
Bitdefender VPN wins on: All-in-one security bundle
ProtonVPN wins on: Privacy, open-source, free tier
Bitdefender VPN vs PrivadoVPN
Bitdefender VPN wins on: Antivirus integration, support
PrivadoVPN wins on: Free plan, streaming 能力
Bitdefender VPN vs AdGuard VPN
Bitdefender VPN wins on: Security suite, more servers
AdGuard VPN wins on: Ad blocking, lighter app
Bitdefender VPN vs Virtual Shield
Bitdefender VPN wins on: Global coverage, antivirus
Virtual Shield wins on: US-focused privacy
Bitdefender VPN vs StrongVPN
Bitdefender VPN wins on: Security bundle, ease of use
StrongVPN wins on: WireGuard speed, dedicated VPN focus
Bitdefender VPN vs FastestVPN
Bitdefender VPN wins on: Antivirus integration, trust
FastestVPN wins on: Lifetime deal pricing
Bitdefender VPN vs Aura VPN
Bitdefender VPN wins on: Malware detection, app quality
Aura VPN wins on: Identity theft 保険 included
Bitdefender VPN vs CyberGhost
Bitdefender VPN wins on: All-in-one security package
CyberGhost wins on: Streaming servers, server network
Bitdefender VPN vs McAfee VPN
Bitdefender VPN wins on: Better malware detection
McAfee VPN wins on: More device connections
Bitdefender VPN vs Private Internet Access
Bitdefender VPN wins on: Antivirus bundle, clean design
PIA wins on: Open-source, proven no-logs, Linux
Bitdefender VPN vs Mysterium VPN
Bitdefender VPN wins on: Reliability, customer support
Mysterium wins on: Decentralized, pay-as-you-go
Bitdefender VPN vs SafeShell VPN
Bitdefender VPN wins on: Brand trust, security features
SafeShell VPN wins on: Niche privacy markets
Bitdefender VPN vs Oyster VPN
Bitdefender VPN wins on: Security suite, server count
Oyster VPN wins on: Lower standalone VPN price
よくある質問
Is Surfshark VPN trustworthy?
Yes. Surfshark’s no-logs policy was audited by Deloitte in 2025. It uses AES-256 encryption and has passed security audits by Cure53. Millions of users trust it worldwide.
Is Bitdefender VPN any good?
It’s a solid VPN for basic privacy needs. It works best as part of the Bitdefender security suite. But standalone VPN users will find better options like Surfshark.
Can you use Surfshark VPN for free?
Surfshark offers a 7-day free trial on Android and iOS. There’s also a 30-day money-back guarantee on all plans. No fully free plan is available.
Does Bitdefender VPN slow down the internet?
In our tests, Bitdefender VPN reduced speeds by about 29%. That’s noticeable but still usable for browsing and light streaming. Nearby servers perform better.
Which is better for streaming, Surfshark or Bitdefender VPN?
Surfshark wins for streaming. It unblocks Netflix, Disney+, Hulu, and BBC iPlayer. Bitdefender VPN struggles with most major platforms.
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