For iOS and macOS users, there is a native settings already you can use so that working at night won't hurt your eyes. It's called Night Shift. It makes your screen warmer (orangeish color). It cuts off the cool blue light that strains your eyes and sleep patterns when your working at a time that wouldn't normally be daylight.

Here's where to find Night Shift on your devices.

For iOS users,
Settings
Display & Brightness
Night Shift

For macOS user,
System Preferences
Displays
Night Shift

I'm selling the following cryptocurrency hardware wallets:
Ledger Nano S
Trezor One
KeepKey
Digital Bitbox

I sell also cold wallets for storing your 24 word mnemonics:
Billfodl - The Safest Way to Hodl
ColdTi - Titanium Recovery Seed backup

Please visit my Lazada shop @ https://www.lazada.com.ph/crypto-shop-ph
FB page @ https://www.facebook.com/cryptoshop.ph

#Proof of authentication #Proof of participation:
- Bitcointalk profile link: https://bitcointalk.org/index.php?action=profile;u=1868251
- Did you check our ANN thread? YES/NO: YES
- Are you participating in our bounty campaign? YES/NO: NO
- Did you check our last updates on whitepaper? YES/NO: YES

Joined Airdrop!
Telegram ID:@CryptoShopPH

I joined airdrop.
Telegram username: @CryptoShopPH

Proof:

Telegram ID: @CryptoShopPH

1)Your telegram username: @CryptoShopPH
2)Bitcointalk profile URL: https://bitcointalk.org/index.php?action=profile;u=1868251
3)Submitted Work form or not: YES
4)Worked to receive AIRDROP or BOUNTY: AIRDROP

Advantages of Trezor:

• Simpler to use. All coins/tokens can be accessed in just one page.
• You can see all the address on the device screen before confirming.
• Has a password manager which is really good.

Disadvantages of Trezor:

• Has lesser coin/token support than Ledger Nano S
• Has only one computer inside. Easier to hack.

Advantages of Ledger Nano S:

• Has more coin/token support than Trezor.
• Has 2 computers inside, which makes hacking it harder.
• Has a casing that you can fold to keep it's screen safe from scratches.

Disadvantages of Ledger Nano S:

• Complex to use. You have to install each coin/token app to the device first before you can use it.
• Due to the limited screen size; when transacting, you have to wait for the address to scroll across the screen just to check the recipient address before you confirm.
• Though it has more coin/token support. You can only use limited coin/token at a time because the memory of the device is limited.

Conclusion:
Which one is better is subjective to your needs. I need features that can only be found exclusively on each device so I have chosen to use both. I use the same mnemonic seed for both so I can access the same wallets on both devices which make my life easier too.
I suggest you use the Trezor because of the handy password manager and you can access all coins right away.
I suggest you use the Ledger Nano S for long term investment coins, since it's a hassle to install/uninstall apps just to access every coin/token you want. And, it's not so friendly when transacting all the time because of the small screen size.