We stock 25 SwitchBot devices. Every price below is read live from our catalogue and shown in your local currency at checkout. We ship from Hong Kong to Singapore, the UK and Australia; all devices are battery or 100–240V, so no voltage converter is needed.
1. Smart locks: what "retrofit" actually means
A retrofit lock does not replace your lock body. It sits over the existing thumb-turn on the inside of the door and rotates it. That means the outside of your door is unchanged — your existing key still works — and nothing needs to be drilled or wired.
| Check | Why it decides everything |
|---|---|
| Cylinder type | Euro-profile, deadbolt and rim cylinders need different adapters. Euro-profile is standard in the UK, SG and AU apartments |
| Door thickness | The clamp has a supported range; too thin or too thick will not seat |
| Thumb-turn shape | Round, oval or lever — the adapter kit has to match |
| Door swing direction | Affects which side the unit mounts on |
| Gap behind the door | Needs clearance for the unit body |
2. Locks and keypads we stock
| Model | Price | Notes |
|---|---|---|
| SwitchBot Smart Lock Ultra Smart Lock Ultra [HK Official] | 1280 | The lock on its own, if you already have a keypad |
| SwitchBot Keypad Vision Pro Vision ProKeypad -// | 920 | Palm vein, face, fingerprint and PIN |
3. Choosing a keypad
| Keypad | Unlock methods | Best for |
|---|---|---|
| Keypad Vision Pro | Palm vein, face, fingerprint, PIN | Hands-full entry, families, anyone who forgets codes |
| Keypad Touch | Fingerprint, PIN | Simpler and cheaper; one or two users |
| No keypad | App and auto-unlock only | Single occupant who always carries a phone |
Palm vein is not a gimmick: it works with wet or gloved hands and does not leave a fingerprint smudge on the reader. For a family with children it is the most forgiving option.
4. Curtain robots: the rail type is the whole decision
This is the single most common ordering mistake. SwitchBot curtain robots come in I-rail and U-rail版本，而且两者不可互换。购买前请先查看您的轨道：
| 轨道类型 | 外观 | 适用型号 |
|---|---|---|
| I-rail (I-rail) | 两端没有回弯的普通轨道——在中国香港、新加坡和英国的出租屋中最常见 | Curtain 3 I-rail |
| U-rail | 带有 U 形槽或两端都有回弯的轨道 | Curtain 3 U-rail |
| Rod (no track) | 圆杆而非轨道 | 需要使用其他产品——本文不涵盖此类产品 |
| 型号 | 价格 | 备注 |
|---|---|---|
| SWITCHBOT Curtain 3 Curtain 3 Smart Curtain I-rail(I-rail) M2K-SBCU | 550 | I-rail 版本 |
| SWITCHBOT Curtain 3 Curtain 3 Smart Curtain U U-rail M2K-SBCU3-U [ | 550 | U-rail 版本 |
| SwitchBot Curtain 2 Curtain Robot(Single pack) - HK Official | 350 | 上一代产品，价格更低 |
另外还要检查两点：机器人可牵引的最大负载（厚重的遮光窗帘通常最容易导致故障），以及您的轨道是否有中间重叠部分——对于双开窗帘，左右两侧各需要一个机器人，而不是一个机器人同时控制两侧。
5. 您需要集线器吗？
| 设置 | 无需集线器也能工作？ | 限制 |
|---|---|---|
| 仅锁具，手机需在附近 | 是（Bluetooth） | 无法远程解锁，也不支持语音控制 |
| 锁具 + 密码键盘 | 是 | 密码键盘直接与锁具通信 |
| 锁具 + 自动化（“解锁后打开灯光”） | 否 | 需要集线器 |
| 窗帘 + 定时计划 | 部分支持 | 机器人可以存储简单的定时计划；集线器可增加日出/日落和远程控制功能 |
| 两台以上设备 | 基本不行 | 单独管理多个 Bluetooth 设备很快就会让人厌烦 |
| 集线器 | 价格 | 备注 |
|---|---|---|
| SWITCHBOT Hub Mini Hub Mini [HK Official] | 219 | Entry level, IR blaster |
| SwitchBot Hub 2 Smart Hub [HK Official] | 530 | Adds temperature and humidity sensing |
| SwitchBot Hub 3 Smart Hub 3 - HK Official | 780 | Matter support and Ethernet |
| SwitchBot AI Hub AI Hub [HK Official] | 1780 | Largest device count, on-device processing |
6. Renting: what to check before installing
| Question | Why it matters |
|---|---|
| Does your tenancy allow hardware on the door? | Most allow removable fittings; some prohibit any modification |
| Is the lock on the front door shared with neighbours? | A shared entrance lock is usually not yours to change |
| Can you restore the original state on move-out? | Retrofit locks come off cleanly — keep the adapter kit and screws |
| Does your building have a master key system? | Some buildings prohibit tenant lock changes entirely |
Because nothing is drilled and the original key still works, a retrofit lock is usually acceptable — but the tenancy agreement is the document that decides, not the product design. Check it first.
7. Shipping, warranty and app region
| Item | Singapore | United Kingdom | Australia |
|---|---|---|---|
| Delivery | 5–9 working days | 6–10 working days | 7–12 working days |
| Warranty | Return to Hong Kong | Same | Same |
| Return freight | Buyer pays, HK$150–350 | Same | Same |
| Plug type (mains devices) | Type G | Type G | Type I |
Locks, keypads and curtain robots are battery powered, so plug type does not apply to them. It matters for the hubs, which use USB-C power supplies — a UK Type G supply works in Singapore, and Australia needs a Type I adapter.
8. Common questions
Will a retrofit lock work on my door?
Only if the cylinder type, thumb-turn shape and door thickness all match. Measure and photograph before ordering.
Can I still use my original key?
Yes. The outside of the door is untouched; the retrofit unit sits on the inside.
What happens if the battery dies?
You keep your original key as the fallback. Check the app battery level monthly.
Curtain robot or a motorised track?
A robot is far cheaper and removable; a motorised track is quieter and neater but needs installation and wiring.
Can one robot open a two-panel window?
No — one robot pulls one panel. Two-panel windows need two robots.
Does it work with Apple Home?
Hub 3 and AI Hub support Matter, which brings devices into Apple Home, Google Home and Alexa. Older hubs use the SwitchBot app only.
Will the lock work if the internet is down?
Yes — Bluetooth and the keypad keep working locally. Remote unlock and cloud automations stop.