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Ultra Pro Flat Indoor HD TV Antenna vs HiDB V421 Indoor TV Antenna

The HiDB V421 is the more capable antenna on paper: it adds a built-in amplifier chip, a magnetic base and a 10ft cable, and claims a much longer range. The Ultra Pro 52183 is a plain non-amplified flat panel with a limited lifetime warranty and a simpler, flatter shape that hides easily. For most people near towers, the Ultra Pro is the safer, simpler pick; the HiDB is worth it if you are far from transmitters and want the extra gain and mounting flexibility.

  • Choose the Ultra Pro 52183 if you live within roughly 30 miles of broadcast towers and want a flat, no-power antenna with a lifetime warranty.
  • Choose the HiDB V421 if you are farther from towers, want a built-in amplifier and a magnetic base, and need the included cable.

Prices

  • Ultra Pro Flat Indoor HD TV Antenna: $17.28 at Lowe's (last seen Nov 11)
  • HiDB V421 Indoor TV Antenna: $18.03 at Amazon (last seen Nov 11)
  • Difference: the Ultra Pro Flat Indoor HD TV Antenna is $0.75 cheaper than the HiDB V421 Indoor TV Antenna at the latest prices (Nov 11)
Ultra Pro
Ultra Pro Flat Omni-directional Indoor HD UHF VHF TV Antenna 52183

Ultra Pro Flat Indoor HD TV Antenna

Ultra Pro Flat Omni-directional Indoor HD UHF VHF TV Antenna 52183

$17.28at Lowe'sChecked Nov 11
See all prices and details
Visit Lowe's
Pros
  • No power outlet needed
  • Covers both UHF and VHF
  • Limited lifetime warranty
  • Flat design hides behind or beside the TV
Cons
  • Short 30-mile range claim
  • No amplifier for weak signals
  • No cable listed in the box
HiDB
HiDB V421 Indoor TV Antenna

HiDB V421 Indoor TV Antenna

$18.03at AmazonChecked Nov 11
See all prices and details
Visit Amazon

Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Built-in amplifier chip for weak signals
  • Long 150-mile range claim
  • Magnetic base mounts on metal surfaces
  • 10ft cable included
  • Moisture and lightning protection claims
Cons
  • UHF only, no VHF
  • Needs power for the amplifier
  • No warranty stated

What separates them

Ultra Pro Flat Indoor HD TV AntennaHiDB V421 Indoor TV Antenna
AmplificationNon-amplified, passiveBuilt-in Smart IC Chip amplifier
Claimed range30 milesUp to 150 miles
Frequency bandsUHF and VHFUHF only
MountingFlat panel, sits or hangsStrong magnetic base
Included cableNot stated10ft cable included
WarrantyLimited lifetimeNot stated
Power neededNoneRequires power for the amplifier
Size and shape6.85in flat panel, easy to hide7 x 7 x 16 cm upright unit, 8.1 oz

Price history

  • Ultra Pro Flat Indoor HD TV Antenna: lowest $17.28 on Nov 12 at Lowe's.
  • HiDB V421 Indoor TV Antenna: lowest $18.03 on Nov 12 at lenonlures.com.

Prices at every store

Ultra Pro Flat Indoor HD TV Antenna

  • Lowe'sNew

    Availability unknown

    $17.28+ $5.99 shippingChecked Nov 11
    Visit Lowe's
Prices and history →

HiDB V421 Indoor TV Antenna

  • lenonlures.comNew

    In stock

    $18.03+ $6.50 shippingChecked Nov 11
    Visit lenonlures.com
  • WalmartNew

    In stockSold by HiDB Electronics

    $18.78+ $6.99 shippingChecked Nov 11
    Visit Walmart
  • kkhardware.comNew

    In stock

    $29.99Checked Nov 11
    Visit kkhardware.com
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $18.03Checked Nov 11
    Visit Amazon

Store links may earn us a commission.

All 5 stores and price history →

Specs compared

SpecUltra Pro Flat Indoor HD TV AntennaHiDB V421 Indoor TV Antenna
Type of AntennaIndoor—
ColorBlack—
BandUHF, VHF—
ReceptionNon-amplified—
StyleFlat—
Range (Miles)30—
Width Of Antenna (Inches)6.85—
WarrantyLimited lifetime—
Signal Range—Up to 150 miles
Supported Technologies—Digital, HDTV channels
Antenna Type—Indoor, Digital HDTV, TV Antenna
Antenna Directivity—Omni-directional
Show all 27 specsShow fewer specs
SpecUltra Pro Flat Indoor HD TV AntennaHiDB V421 Indoor TV Antenna
Antenna Gain—4 dBi
Antenna Frequency Band—UHF
Antenna Highlights—Built-in Smart IC Chip
Included Accessories—10ft Cable
Installation Location—Indoor
Mount Type—Magnetic
Suitable Location—Indoor
Typical Users—Smart Tv users
Water Resistance—Moisture protection, Lightning protection

Questions and answers

Which is better for weak signals far from towers?
The HiDB V421. Its built-in amplifier and longer range claim give it more headroom when towers are distant. The Ultra Pro is passive and rated for about 30 miles.
Does the Ultra Pro pick up VHF channels?
Yes. The Ultra Pro lists both UHF and VHF. The HiDB V421 lists UHF only, so low-band VHF stations may be harder to get with it.
Which one is easier to place?
The HiDB has a magnetic base that sticks to metal and comes with a 10ft cable, so it is easier to position near a window. The Ultra Pro is a flat panel you hang or stand.
Do I need to power either antenna?
Only the HiDB needs power, for its amplifier chip. The Ultra Pro is fully passive and works with no outlet.
Which lasts longer?
The Ultra Pro backs its build with a limited lifetime warranty, which is the stronger long-term signal. HiDB states no warranty, so its lifespan depends on the amplifier electronics.
Is the HiDB worth stepping up to?
If you are more than 30 miles from towers or get dropouts, yes. If you are close and want a simple no-power setup, the Ultra Pro covers you.

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More comparisons

  • Ultra Pro Flat Omni-directional Indoor HD UHF VHF TV Antenna 52183 vs Omni+ Omnidirectional Digital Antenna
  • Omni+ Omnidirectional Digital Antenna vs HiDB V421 Indoor TV Antenna
Amplifier Type
—
Built-in Smart IC Chip
Impedance—75 Ohm
Dimensions—7 x 7 x 16 cm
Weight—8.1 OZ
Design Highlights—Strong Magnetic Base
Tuner Type—ATSC (built-in digital tuners)